{"schema_version":10,"catalog_revision":"5dd8757c984e741419577d54a472a4648eae851c7bda5f358f9e92792acbfdfb","nodes":[{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-italian-game","title_zh":"義大利開局","title_en":"Italian Game","side":"白方","category":"主流","eco":"C50","styles":["局面","發展"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Bc4","variations":[{"name":"Classical Variation, Giuoco Pianissimo, Main Line","line":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. O-O O-O 7. Re1 a6 8. Bb3 Ba7 9. h3"},{"name":"Classical Variation, Tarrasch Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. O-O d6 7. a4 a6 8. h3 Nf6 9. Re1"},{"name":"Classical Variation, Ghulam-Kassim Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 7. Bd5 Nxf2 8. Kxf2 dxc3+ 9. Kg3"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-ruy-lopez","title_zh":"西班牙開局","title_en":"Ruy Lopez","side":"白方","category":"主流","eco":"C60","styles":["局面","發展"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Bb5","variations":[{"name":"Open, Classical Defense, Main Line","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 Be7 7. Re1 b5 8. Bb3 d5 9. dxe5 Be6 10. c3"},{"name":"Open, Main Line","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6"},{"name":"Marshall Attack, Main Line","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-scotch-game","title_zh":"蘇格蘭開局","title_en":"Scotch Game","side":"白方","category":"主流","eco":"C45","styles":["局面","發展"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4","variations":[{"name":"Classical Variation","line":"1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5"},{"name":"Schmidt Variation","line":"1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6"},{"name":"Steinitz Variation","line":"1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-vienna-game","title_zh":"維也納開局","title_en":"Vienna Game","side":"白方","category":"主流","eco":"C25","styles":["局面","發展"],"mainline":"1. e4 e5 2. Nc3","variations":[{"name":"Hamppe-Muzio, Dubois Variation","line":"1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3 7. Qxf3 Ne5 8. Qxf4 Qf6"},{"name":"Stanley Variation, Frankenstein-Dracula Variation","line":"1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd6 5. Bb3 Nc6 6. Nb5 g6 7. Qf3 f5 8. Qd5 Qe7 9. Nxc7+ Kd8 10. Nxa8 b6"},{"name":"Pierce Gambit, Rushmere Attack","line":"1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4 g4 6. Bc4 gxf3 7. O-O d5 8. exd5 Bg4 9. dxc6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-four-knights-game","title_zh":"四馬開局","title_en":"Four Knights Game","side":"白方","category":"主流","eco":"C47","styles":["局面","發展"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6","variations":[{"name":"Scotch Variation Accepted, Main Line","line":"1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 O-O 9. O-O"},{"name":"Spanish Variation, Bardeleben Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bc5 5. O-O O-O 6. Nxe5 Nxe5 7. d4 Bd6 8. f4 Nc6 9. e5 Bb4"},{"name":"Spanish Variation, Rubinstein Variation, Maróczy Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Be2 Nxf3+ 6. Bxf3 Bc5 7. O-O O-O 8. d3 d6 9. Na4 Bb6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-ponziani-opening","title_zh":"龐齊亞尼開局","title_en":"Ponziani Opening","side":"白方","category":"主流","eco":"C44","styles":["局面","發展"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. c3","variations":[{"name":"Jaenisch Counterattack","line":"1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d3 d5 5. Nbd2"},{"name":"Ponziani Countergambit, Schmidt Attack","line":"1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5"},{"name":"Steinitz Variation","line":"1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 f6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-bishops-opening","title_zh":"象開局","title_en":"Bishop's Opening","side":"白方","category":"主流","eco":"C23","styles":["局面","發展"],"mainline":"1. e4 e5 2. Bc4","variations":[{"name":"Lisitsyn Variation","line":"1. e4 e5 2. Bc4 c6 3. d4 d5 4. exd5 cxd5 5. Bb5+ Bd7 6. Bxd7+ Nxd7 7. dxe5 Nxe5 8. Ne2"},{"name":"Pratt Variation","line":"1. e4 e5 2. Bc4 Bc5 3. c3 Nf6 4. d4 exd4 5. e5 d5 6. exf6 dxc4 7. Qh5 O-O"},{"name":"Four Pawns Gambit","line":"1. e4 e5 2. Bc4 Bc5 3. b4 Bxb4 4. f4 exf4 5. Nf3 Be7 6. d4 Bh4+ 7. g3 fxg3 8. O-O gxh2+ 9. Kh1"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-kings-gambit","title_zh":"王翼棄兵","title_en":"King's Gambit","side":"白方","category":"趣味","eco":"C30","styles":["戰術","主動"],"mainline":"1. e4 e5 2. f4","variations":[{"name":"Abbazia Defense, Main Line","line":"1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Nf6 5. Bb5+ c6 6. dxc6 bxc6 7. Bc4 Nd5"},{"name":"Falkbeer Countergambit, Charousek Gambit, Main Line","line":"1. e4 e5 2. f4 d5 3. exd5 e4 4. d3 Nf6 5. dxe4 Nxe4 6. Nf3 Bc5 7. Qe2 Bf5"},{"name":"Classical, Svenonius Variation","line":"1. e4 e5 2. Bc4 Nc6 3. Nc3 Nf6 4. d3 Bc5 5. f4 d6 6. Nf3 Bg4 7. h3 Bxf3 8. Qxf3 exf4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-danish-gambit","title_zh":"丹麥棄兵","title_en":"Danish Gambit","side":"白方","category":"趣味","eco":"C21","styles":["戰術","主動"],"mainline":"1. e4 e5 2. d4 exd4 3. c3","variations":[{"name":"Classical Defense","line":"1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Nf6"},{"name":"Chigorin Defense","line":"1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Qe7"},{"name":"Copenhagen Defense","line":"1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 cxb2 5. Bxb2 Bb4+"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-center-game","title_zh":"中心開局","title_en":"Center Game","side":"白方","category":"主流","eco":"C21","styles":["局面","發展"],"mainline":"1. e4 e5 2. d4 exd4 3. Qxd4","variations":[{"name":"Kupreichik Variation","line":"1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Nf6 5. Nc3 Bb4 6. Bd2 O-O 7. O-O-O Re8 8. Bc4 d6 9. Nh3"},{"name":"Normal Variation","line":"1. e4 e5 2. d4 exd4 3. Qxd4 Nc6"},{"name":"Charousek Variation","line":"1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 Bb4+ 5. c3 Be7"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"w-sicilian-defense-alapin-variation","title_zh":"西西里防禦：阿拉賓變例","title_en":"Sicilian Defense: Alapin Variation","side":"白方","category":"主流","eco":"B22","styles":["局面","發展"],"mainline":"1. e4 c5 2. c3","variations":[{"name":"Alapin Variation, Barmen Defense, Endgame Variation","line":"1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4 7. Nc3 Bxf3 8. gxf3 Qxd4 9. Qxd4 Nxd4"},{"name":"Alapin Variation, Stoltz Attack, Ivanchuk Line","line":"1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3 c4 7. Bc2 Qc7 8. Qe2 g5"},{"name":"Alapin Variation, Barmen Defense, Milner-Barry Attack","line":"1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 cxd4 6. cxd4 e5 7. Nc3 Bb4 8. Be2"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"w-sicilian-defense-closed","title_zh":"西西里防禦：封閉變例","title_en":"Sicilian Defense: Closed","side":"白方","category":"主流","eco":"B25","styles":["局面","發展"],"mainline":"1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4","variations":[{"name":"Closed, Botvinnik Defense, Edge Variation","line":"1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 7. Nh3 Nge7"},{"name":"Closed, Traditional","line":"1. e4 c5 2. Nc3 Nc6"},{"name":"Closed, Smyslov Variation","line":"1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"w-sicilian-defense-smith-morra-gambit","title_zh":"西西里防禦：史密斯－莫拉棄兵","title_en":"Sicilian Defense: Smith-Morra Gambit","side":"白方","category":"趣味","eco":"B21","styles":["戰術","主動"],"mainline":"1. e4 c5 2. d4 cxd4 3. c3","variations":[{"name":"Smith-Morra Gambit Accepted, Classical Formation","line":"1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 a6 7. O-O Nf6"},{"name":"Smith-Morra Gambit Accepted, Chicago Defense","line":"1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Bc4 e6 6. Nf3 d6 7. O-O a6 8. Qe2 b5 9. Bb3 Ra7"},{"name":"Smith-Morra Gambit Accepted, Larsen Defense","line":"1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Qc7 7. Qe2 a6 8. O-O Bd6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"w-sicilian-defense-grand-prix-attack","title_zh":"西西里防禦：大獎賽攻擊","title_en":"Sicilian Defense: Grand Prix Attack","side":"白方","category":"主流","eco":"B23","styles":["戰術","主動"],"mainline":"1. e4 c5 2. Nc3 Nc6 3. f4","variations":[{"name":"Grand Prix Attack, Schofman Variation","line":"1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. f5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e6","label":"王兵起手 · …e6"},"id":"w-french-defense-advance-variation","title_zh":"法蘭西防禦：推進變例","title_en":"French Defense: Advance Variation","side":"白方","category":"主流","eco":"C02","styles":["局面","發展"],"mainline":"1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6","variations":[{"name":"Advance Variation, Milner-Barry Gambit, Main Line","line":"1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. O-O"},{"name":"Advance Variation, Main Line","line":"1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. a3"},{"name":"Advance Variation, Milner-Barry Gambit, Sørensen Variation","line":"1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. O-O Nxd4 9. Ng5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e6","label":"王兵起手 · …e6"},"id":"w-french-defense-tarrasch-variation","title_zh":"法蘭西防禦：塔拉什變例","title_en":"French Defense: Tarrasch Variation","side":"白方","category":"主流","eco":"C03","styles":["局面","發展"],"mainline":"1. e4 e6 2. d4 d5 3. Nd2","variations":[{"name":"Tarrasch Variation, Open System, Main Line","line":"1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Bd6 7. dxc5 Bxc5 8. O-O Ne7 9. c3"},{"name":"Tarrasch Variation, Closed Variation, Main Line","line":"1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4"},{"name":"Tarrasch Variation, Leningrad Variation","line":"1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 Nc6 7. Ne2 cxd4 8. cxd4 Nb6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e6","label":"王兵起手 · …e6"},"id":"w-french-defense-exchange-variation","title_zh":"法蘭西防禦：兌換變例","title_en":"French Defense: Exchange Variation","side":"白方","category":"主流","eco":"C01","styles":["局面","發展"],"mainline":"1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3","variations":[{"name":"Exchange Variation, Bogoljubow Variation","line":"1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nc3 Nf6 5. Bg5 Nc6"},{"name":"Exchange Variation, Svenonius Variation","line":"1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. exd5 exd5 5. Bg5"},{"name":"Exchange Variation, Monte Carlo Variation","line":"1. e4 e6 2. d4 d5 3. exd5 exd5 4. c4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c6","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c6","label":"王兵起手 · …c6"},"id":"w-caro-kann-defense-advance-variation","title_zh":"卡羅康防禦：推進變例","title_en":"Caro-Kann Defense: Advance Variation","side":"白方","category":"主流","eco":"B12","styles":["局面","發展"],"mainline":"1. e4 c6 2. d4 d5 3. e5","variations":[{"name":"Advance Variation, Van der Wiel Attack","line":"1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. h4"},{"name":"Advance Variation, Van der Wiel Attack, Dreyev Defense","line":"1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 Qb6"},{"name":"Advance Variation, Prins Attack","line":"1. e4 c6 2. d4 d5 3. e5 Bf5 4. b4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c6","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c6","label":"王兵起手 · …c6"},"id":"w-caro-kann-defense-panov-attack","title_zh":"卡羅康防禦：帕諾夫攻擊","title_en":"Caro-Kann Defense: Panov Attack","side":"白方","category":"主流","eco":"B14","styles":["戰術","主動"],"mainline":"1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nc6 5. Nc3 Nf6 6. Nf3 e6 7. cxd5 exd5 8. Bb5 Bd6 9. Bg5 O-O 10. O-O","variations":[{"name":"Panov Attack, Main Line","line":"1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4"},{"name":"Panov Attack, Modern Defense, Mieses Line","line":"1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4"},{"name":"Panov Attack, Modern Defense, Carlsbad Line","line":"1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 e6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c6","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c6","label":"王兵起手 · …c6"},"id":"w-caro-kann-defense-maroczy-variation","title_zh":"卡羅康防禦：幻想變例","title_en":"Caro-Kann Defense: Maróczy Variation","side":"白方","category":"趣味","eco":"B12","styles":["戰術","主動"],"mainline":"1. e4 c6 2. d4 d5 3. f3","variations":[{"name":"Maróczy Variation, Maróczy Gambit","line":"1. e4 c6 2. d4 d5 3. f3 dxe4 4. fxe4 e5 5. Nf3 exd4 6. Bc4"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"w-queens-gambit","title_zh":"后翼棄兵","title_en":"Queen's Gambit","side":"白方","category":"主流","eco":"D06","styles":["戰術","主動"],"mainline":"1. d4 d5 2. c4","variations":[{"name":"Classical Defense, Alekhine System, Main Line","line":"1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. Qe2 b5 8. Bb3 Bb7 9. Nc3"},{"name":"Lasker Defense, Main Line","line":"1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3"},{"name":"Orthodox Defense, Main Line","line":"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 O-O 7. Rc1 h6 8. Bh4 c5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"w-london-system","title_zh":"倫敦體系","title_en":"London System","side":"白方","category":"主流","eco":"A48","styles":["局面","發展"],"mainline":"1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6","variations":[{"name":"London System, with Be2","line":"1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. h3 c5 6. Be2"},{"name":"London System, with Bd3","line":"1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Bd3"},{"name":"Poisoned Pawn Variation","line":"1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Qb6 5. Nc3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"w-rapport-jobava-system","title_zh":"拉波特－喬巴瓦體系","title_en":"Rapport-Jobava System","side":"白方","category":"主流","eco":"D01","styles":["局面","發展"],"mainline":"1. d4 d5 2. Nc3 Nf6 3. Bf4 e6","variations":[{"name":"Rapport-Jobava System, with e6","line":"1. d4 d5 2. Nc3 e6 3. Bf4"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"w-colle-system","title_zh":"科勒體系","title_en":"Colle System","side":"白方","category":"主流","eco":"D05","styles":["局面","發展"],"mainline":"1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3","variations":[{"name":"Traditional Colle","line":"1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. c3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"w-torre-attack","title_zh":"托雷攻擊","title_en":"Torre Attack","side":"白方","category":"主流","eco":"A46","styles":["戰術","主動"],"mainline":"1. d4 Nf6 2. Nf3 e6 3. Bg5 h6","variations":[{"name":"Classical Defense","line":"1. d4 Nf6 2. Nf3 e6 3. Bg5"},{"name":"Fianchetto Defense, Euwe Variation","line":"1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 c5"},{"name":"Fianchetto Defense","line":"1. d4 Nf6 2. Nf3 g6 3. Bg5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"w-trompowsky-attack","title_zh":"特龍普夫斯基攻擊","title_en":"Trompowsky Attack","side":"白方","category":"主流","eco":"A45","styles":["戰術","主動"],"mainline":"1. d4 Nf6 2. Bg5","variations":[{"name":"Classical Defense, Big Center Variation","line":"1. d4 Nf6 2. 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Nbd2 Bb7 9. e4 Na6"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"w-richter-veresov-attack","title_zh":"里赫特－韋列索夫攻擊","title_en":"Richter-Veresov Attack","side":"白方","category":"主流","eco":"D01","styles":["戰術","主動"],"mainline":"1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5","variations":[{"name":"Two Knights System, Grünfeld Defense","line":"1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 g6"},{"name":"Richter Variation","line":"1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. f3"},{"name":"Veresov Variation","line":"1. d4 Nf6 2. Nc3 d5 3. Bg5 Bf5 4. Bxf6"}]},{"first_move":"Nf3","first_move_san":"Nf3","reply_san":"起手","subgroup":{"id":"other","label":"其他棋路"},"family":{"id":"Nf3-起手","label":"列蒂起手 · …起手"},"id":"w-zukertort-opening","title_zh":"楚克托特開局","title_en":"Zukertort Opening","side":"白方","category":"主流","eco":"A04","styles":["局面","發展"],"mainline":"1. Nf3","variations":[{"name":"Kingside Fianchetto","line":"1. Nf3 g6"},{"name":"Queenside Fianchetto Variation","line":"1. Nf3 b6"},{"name":"Queen's Gambit Invitation","line":"1. Nf3 e6"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"w-blackmar-diemer-gambit","title_zh":"布萊克馬－迪默棄兵","title_en":"Blackmar-Diemer Gambit","side":"白方","category":"趣味","eco":"D00","styles":["戰術","主動"],"mainline":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6","variations":[{"name":"von Popiel Gambit, Zilbermints Variation","line":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Bg5 Bf5 5. Bxf6 exf6 6. g4 Bg6 7. Qe2 Bb4 8. Qb5+"},{"name":"Zeller Defense, Soller Attack","line":"1. d4 d5 2. e4 dxe4 3. Nc3 Bf5 4. f3 Nf6 5. Bc4"},{"name":"von Popiel Gambit","line":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. Bg5"}]},{"first_move":"c4","first_move_san":"c4","reply_san":"起手","subgroup":{"id":"other","label":"其他棋路"},"family":{"id":"c4-起手","label":"英式起手 · …起手"},"id":"w-english-opening","title_zh":"英格蘭開局","title_en":"English Opening","side":"白方","category":"主流","eco":"A10","styles":["局面","發展"],"mainline":"1. c4","variations":[{"name":"Symmetrical, Hedgehog, Flexible Formation","line":"1. c4 e6 2. Nf3 c5 3. Nc3 Nf6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. b3 Nbd7"},{"name":"King's English Variation, Four Knights Variation","line":"1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d4 exd4 5. Nxd4 Bb4 6. Bg5 h6 7. Bh4 Bxc3+ 8. bxc3 Ne5"},{"name":"King's English Variation, Botvinnik System, Prickly Pawn Pass System","line":"1. c4 g6 2. Nc3 Bg7 3. g3 Nf6 4. Bg2 O-O 5. e4 d6 6. Nge2 e5 7. O-O c6 8. d3 a6"}]},{"first_move":"Nf3","first_move_san":"Nf3","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"Nf3-d5","label":"列蒂起手 · …d5"},"id":"w-reti-opening","title_zh":"列蒂開局","title_en":"Réti Opening","side":"白方","category":"主流","eco":"A09","styles":["局面","發展"],"mainline":"1. Nf3 d5 2. c4","variations":[{"name":"Anglo-Slav Variation, Bogoljubow Variation, Stonewall Line","line":"1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c6 7. Bb2"},{"name":"Anglo-Slav Variation, with g3","line":"1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bf5 5. d3 h6 6. c4 e6"},{"name":"Anglo-Slav Variation","line":"1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. Bg2 e6 5. b3 Be7 6. Bb2"}]},{"first_move":"Nf3","first_move_san":"Nf3","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"Nf3-Nf6","label":"列蒂起手 · …Nf6"},"id":"w-kings-indian-attack","title_zh":"王翼印度攻擊","title_en":"King's Indian Attack","side":"白方","category":"主流","eco":"A05","styles":["戰術","主動"],"mainline":"1. Nf3 Nf6 2. g3 d5","variations":[{"name":"Keres Variation","line":"1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 5. d4 Ngf6 6. c4 e6 7. cxd5 exd5 8. Nc3 Bd6"},{"name":"Sicilian Variation","line":"1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 c5 5. g3 Nc6 6. Bg2 Be7 7. O-O O-O 8. Re1"},{"name":"King's Indian Attack, with Bf5","line":"1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bf5 5. d3 h6 6. c4 dxc4"}]},{"first_move":"其他","first_move_san":"f4","reply_san":"起手","subgroup":{"id":"king-wing","label":"王翼兵起手"},"family":{"id":"其他-f4-起手","label":"不規則起手 · f4 …起手"},"id":"w-bird-opening","title_zh":"伯德開局","title_en":"Bird Opening","side":"白方","category":"主流","eco":"A02","styles":["局面","發展"],"mainline":"1. f4","variations":[{"name":"Lasker Variation","line":"1. f4 d5 2. Nf3 Nf6 3. e3 c5"},{"name":"Batavo-Polish Attack","line":"1. f4 Nf6 2. Nf3 g6 3. b4"},{"name":"Double Duck Formation","line":"1. f4 f5 2. d4 d5"}]},{"first_move":"其他","first_move_san":"b3","reply_san":"起手","subgroup":{"id":"queen-wing","label":"后翼兵起手"},"family":{"id":"其他-b3-起手","label":"不規則起手 · b3 …起手"},"id":"w-nimzo-larsen-attack","title_zh":"尼姆佐－拉森攻擊","title_en":"Nimzo-Larsen Attack","side":"白方","category":"主流","eco":"A01","styles":["戰術","主動"],"mainline":"1. b3","variations":[{"name":"Classical Variation","line":"1. Nf3 d5 2. b3"},{"name":"Modern Variation","line":"1. b3 e5 2. Bb2 Nc6 3. c4 Nf6"},{"name":"Spike Variation","line":"1. b3 Nf6 2. Bb2 g6 3. g4"}]},{"first_move":"其他","first_move_san":"b4","reply_san":"起手","subgroup":{"id":"queen-wing","label":"后翼兵起手"},"family":{"id":"其他-b4-起手","label":"不規則起手 · b4 …起手"},"id":"w-polish-opening","title_zh":"波蘭開局","title_en":"Polish Opening","side":"白方","category":"主流","eco":"A00","styles":["局面","發展"],"mainline":"1. b4","variations":[{"name":"Rooks Swap Line","line":"1. b4 e6 2. Bb2 Nf6 3. b5 a6 4. a4 axb5 5. axb5 Rxa1 6. Bxa1"},{"name":"King's Indian Variation, Sokolsky Attack","line":"1. b4 Nf6 2. Bb2 g6 3. c4 Bg7 4. e3 d6 5. Nf3 O-O 6. d4"},{"name":"Schiffler-Sokolsky Variation","line":"1. b4 e6 2. Bb2 Nf6 3. b5 d5 4. e3"}]},{"first_move":"其他","first_move_san":"Nc3","reply_san":"起手","subgroup":{"id":"knight","label":"馬類發展"},"family":{"id":"其他-Nc3-起手","label":"不規則起手 · Nc3 …起手"},"id":"w-van-geet-opening","title_zh":"范吉特開局","title_en":"Van Geet Opening","side":"白方","category":"主流","eco":"A00","styles":["局面","發展"],"mainline":"1. Nc3","variations":[{"name":"Sicilian Two Knights","line":"1. Nc3 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4"},{"name":"Novosibirsk Variation","line":"1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qh4"},{"name":"Reversed Scandinavian","line":"1. Nc3 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qa4"}]},{"first_move":"其他","first_move_san":"g3","reply_san":"起手","subgroup":{"id":"king-wing","label":"王翼兵起手"},"family":{"id":"其他-g3-起手","label":"不規則起手 · g3 …起手"},"id":"w-hungarian-opening","title_zh":"匈牙利開局","title_en":"Hungarian Opening","side":"白方","category":"主流","eco":"A00","styles":["局面","發展"],"mainline":"1. g3","variations":[{"name":"Reversed Norwegian Defense","line":"1. g3 e5 2. Nf3 e4 3. Nh4"},{"name":"Slav Formation","line":"1. g3 d5 2. Bg2 c6"},{"name":"Catalan Formation","line":"1. g3 d5 2. Bg2 e6"}]},{"first_move":"其他","first_move_san":"d3","reply_san":"起手","subgroup":{"id":"center","label":"中央預備"},"family":{"id":"其他-d3-起手","label":"不規則起手 · d3 …起手"},"id":"w-mieses-opening","title_zh":"米塞斯開局","title_en":"Mieses Opening","side":"白方","category":"主流","eco":"A00","styles":["局面","發展"],"mainline":"1. d3","variations":[{"name":"Venezolana Variation","line":"1. d3 c5 2. Nc3 Nc6 3. g3"},{"name":"Myers Spike Attack","line":"1. d3 g6 2. g4"},{"name":"Reversed Rat","line":"1. d3 e5"}]},{"first_move":"其他","first_move_san":"c3","reply_san":"起手","subgroup":{"id":"queen-wing","label":"后翼兵起手"},"family":{"id":"其他-c3-起手","label":"不規則起手 · c3 …起手"},"id":"w-saragossa-opening","title_zh":"薩拉戈薩開局","title_en":"Saragossa Opening","side":"白方","category":"主流","eco":"A00","styles":["局面","發展"],"mainline":"1. c3","variations":[]},{"first_move":"其他","first_move_san":"g4","reply_san":"起手","subgroup":{"id":"king-wing","label":"王翼兵起手"},"family":{"id":"其他-g4-起手","label":"不規則起手 · g4 …起手"},"id":"w-grob-opening","title_zh":"格羅布開局","title_en":"Grob Opening","side":"白方","category":"趣味","eco":"A00","styles":["戰術","主動"],"mainline":"1. g4","variations":[{"name":"Keene Defense, Main Line","line":"1. g4 d5 2. h3 e5 3. Bg2 c6 4. d4 e4 5. c4 Bd6 6. Nc3 Ne7"},{"name":"Grob Gambit, Fritz Gambit, Romford Countergambit","line":"1. g4 d5 2. Bg2 Bxg4 3. c4 d4 4. Bxb7 Nd7 5. Bxa8 Qxa8"},{"name":"Grob Gambit, Keres Gambit","line":"1. g4 d5 2. Bg2 e5 3. d4 exd4 4. c3"}]},{"first_move":"其他","first_move_san":"a4","reply_san":"起手","subgroup":{"id":"queen-wing","label":"后翼兵起手"},"family":{"id":"其他-a4-起手","label":"不規則起手 · a4 …起手"},"id":"w-ware-opening","title_zh":"韋爾開局","title_en":"Ware Opening","side":"白方","category":"趣味","eco":"A00","styles":["戰術","主動"],"mainline":"1. a4","variations":[{"name":"Ware Gambit","line":"1. a4 e5 2. a5 d5 3. e3 f5 4. a6"},{"name":"Cologne Gambit","line":"1. a4 b6 2. d4 d5 3. Nc3 Nd7"},{"name":"Wing Gambit","line":"1. a4 b5 2. axb5 Bb7"}]},{"first_move":"其他","first_move_san":"Nh3","reply_san":"起手","subgroup":{"id":"knight","label":"馬類發展"},"family":{"id":"其他-Nh3-起手","label":"不規則起手 · Nh3 …起手"},"id":"w-amar-opening","title_zh":"阿馬爾開局","title_en":"Amar Opening","side":"白方","category":"趣味","eco":"A00","styles":["戰術","主動"],"mainline":"1. Nh3","variations":[{"name":"Paris Gambit, Gent Gambit","line":"1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O fxg3 6. hxg3"},{"name":"Paris Gambit","line":"1. Nh3 d5 2. g3 e5 3. f4"}]},{"first_move":"其他","first_move_san":"a3","reply_san":"起手","subgroup":{"id":"queen-wing","label":"后翼兵起手"},"family":{"id":"其他-a3-起手","label":"不規則起手 · a3 …起手"},"id":"w-anderssens-opening","title_zh":"安德森開局","title_en":"Anderssen's Opening","side":"白方","category":"主流","eco":"A00","styles":["局面","發展"],"mainline":"1. a3","variations":[{"name":"Polish Gambit","line":"1. a3 a5 2. b4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-bongcloud-attack","title_zh":"雲中王攻擊","title_en":"Bongcloud Attack","side":"白方","category":"趣味","eco":"C20","styles":["戰術","主動"],"mainline":"1. e4 e5 2. Ke2","variations":[]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-italian-game-evans-gambit","title_zh":"義大利開局：伊凡斯棄兵","title_en":"Italian Game: Evans Gambit","side":"白方","category":"主流","eco":"C51","styles":["戰術","主動"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4","variations":[{"name":"Evans Gambit, McDonnell Defense, Main Line","line":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6"},{"name":"Evans Gambit, Compromised Defense, Main Line","line":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3 8. Qb3 Qf6 9. e5 Qg6 10. Nxc3 Nge7 11. Ba3"},{"name":"Evans Gambit, Fraser Attack","line":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. d4 exd4 7. O-O d6 8. cxd4 Bb6 9. Nc3 Bg4 10. Qa4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-scotch-game-scotch-gambit","title_zh":"蘇格蘭棄兵","title_en":"Scotch Game: Scotch Gambit","side":"白方","category":"主流","eco":"C44","styles":["戰術","主動"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4","variations":[{"name":"Scotch Gambit, Cochrane-Anderssen Variation","line":"1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O d6 6. c3 Bg4"},{"name":"Scotch Gambit, Kingside Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 Ng4"},{"name":"Scotch Gambit, Advance Variation","line":"1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-vienna-game-vienna-gambit","title_zh":"維也納棄兵","title_en":"Vienna Game: Vienna Gambit","side":"白方","category":"主流","eco":"C29","styles":["戰術","主動"],"mainline":"1. e4 e5 2. Nc3 Nf6 3. f4","variations":[{"name":"Vienna Gambit, Wurzburger Trap","line":"1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. d3 Qh4+ 6. g3 Nxg3 7. Nf3 Qh5 8. Nxd5"},{"name":"Vienna Gambit, Main Line","line":"1. e4 e5 2. Nc3 Nf6 3. f4 d5"},{"name":"Vienna Gambit, Kaufmann Variation","line":"1. e4 e5 2. Nc3 Nf6 3. f4 d5 4. fxe5 Nxe4 5. Nf3 Bg4 6. Qe2"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-ruy-lopez-exchange-variation","title_zh":"西班牙開局：兌換變例","title_en":"Ruy Lopez: Exchange Variation","side":"白方","category":"主流","eco":"C68","styles":["局面","發展"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6","variations":[{"name":"Exchange Variation, Alekhine Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. d4 exd4 6. Qxd4 Qxd4 7. Nxd4 Bd6"},{"name":"Exchange Variation, Normal Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O"},{"name":"Exchange Variation, Romanovsky Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nc3 f6 6. d3"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-ruy-lopez-closed","title_zh":"西班牙開局：封閉變例","title_en":"Ruy Lopez: Closed","side":"白方","category":"主流","eco":"C92","styles":["局面","發展"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3","variations":[{"name":"Closed, Flohr System","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7"},{"name":"Closed, Zaitsev System","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Re8"},{"name":"Closed, Breyer Defense","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"w-sicilian-defense-open","title_zh":"西西里防禦：開放變例","title_en":"Sicilian Defense: Open","side":"白方","category":"主流","eco":"B33","styles":["局面","發展"],"mainline":"1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6","variations":[]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"w-sicilian-defense-moscow-variation","title_zh":"西西里防禦：莫斯科變例","title_en":"Sicilian Defense: Moscow Variation","side":"白方","category":"主流","eco":"B51","styles":["局面","發展"],"mainline":"1. e4 c5 2. Nf3 d6 3. Bb5+","variations":[{"name":"Moscow Variation, Moscow Gambit","line":"1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. c3 Nf6 6. Re1 a6 7. Bxc6 Bxc6 8. d4 Bxe4 9. Bg5"},{"name":"Moscow Variation, Main Line","line":"1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7"},{"name":"Moscow Variation, Sokolsky Variation","line":"1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"w-sicilian-defense-nyezhmetdinov-rossolimo-attack","title_zh":"西西里防禦：羅索里莫攻擊","title_en":"Sicilian Defense: Nyezhmetdinov-Rossolimo Attack","side":"白方","category":"主流","eco":"B30","styles":["戰術","主動"],"mainline":"1. e4 c5 2. Nf3 Nc6 3. Bb5","variations":[{"name":"Nyezhmetdinov-Rossolimo Attack, Gurgenidze Variation","line":"1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. b4"},{"name":"Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack","line":"1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Qa4"},{"name":"Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation","line":"1. e4 c5 2. Nf3 Nc6 3. Bb5 g6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e6","label":"王兵起手 · …e6"},"id":"w-french-defense-winawer-variation","title_zh":"法蘭西防禦：維納維爾變例","title_en":"French Defense: Winawer Variation","side":"白方","category":"主流","eco":"C15","styles":["局面","發展"],"mainline":"1. e4 e6 2. d4 d5 3. Nc3 Bb4","variations":[{"name":"Winawer Variation, Poisoned Pawn Variation, Main Line","line":"1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2"},{"name":"Winawer Variation, Positional Variation","line":"1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. a4 Nbc6 8. Nf3 Qa5 9. Qd2 Bd7"},{"name":"Winawer Variation, Poisoned Pawn Variation","line":"1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 cxd4 8. Qxg7 Rg8 9. Qxh7 Nbc6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e6","label":"王兵起手 · …e6"},"id":"w-french-defense-classical-variation","title_zh":"法蘭西防禦：古典變例","title_en":"French Defense: Classical Variation","side":"白方","category":"主流","eco":"C14","styles":["局面","發展"],"mainline":"1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7","variations":[{"name":"Classical Variation, Burn Variation, Main Line","line":"1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 O-O"},{"name":"Classical Variation, Stahlberg Variation","line":"1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 O-O 8. Nf3 c5 9. Qd2 Nc6 10. O-O-O c4"},{"name":"Classical Variation, Richter Attack","line":"1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. Bxf6 Bxf6 6. e5 Be7 7. Qg4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c6","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c6","label":"王兵起手 · …c6"},"id":"w-caro-kann-defense-classical-variation","title_zh":"卡羅康防禦：古典變例","title_en":"Caro-Kann Defense: Classical Variation","side":"白方","category":"主流","eco":"B19","styles":["局面","發展"],"mainline":"1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7","variations":[{"name":"Classical Variation, Spassky Variation","line":"1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5"},{"name":"Classical Variation, Lobron System","line":"1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Be7"},{"name":"Classical Variation, Seirawan Variation","line":"1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 e6 12. O-O-O Bd6"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"w-queens-gambit-declined-exchange-variation","title_zh":"后翼棄兵拒絕：兌換變例","title_en":"Queen's Gambit Declined: Exchange Variation","side":"白方","category":"主流","eco":"D35","styles":["戰術","主動"],"mainline":"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. e3 Be7 5. cxd5 exd5 6. Bd3 O-O 7. Nf3 c6","variations":[{"name":"Exchange Variation, Chameleon Variation","line":"1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 O-O 7. Bd3 Nbd7 8. Qc2 Re8 9. Nge2 Nf8 10. O-O-O"},{"name":"Exchange Variation, Reshevsky Variation","line":"1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 Be7 7. e3 O-O 8. Bd3 h6 9. Bh4"},{"name":"Exchange Variation, Carlsen Variation","line":"1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 h6 7. Bh4 Bg4"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"w-catalan-opening-open-defense","title_zh":"加泰隆尼亞開局：開放防禦","title_en":"Catalan Opening: Open Defense","side":"白方","category":"主流","eco":"E02","styles":["局面","發展"],"mainline":"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4","variations":[{"name":"Alekhine Variation","line":"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2"},{"name":"Modern Sharp Variation","line":"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Nc6 6. Qa4 Bb4+"},{"name":"Classical Line","line":"1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7"}]},{"first_move":"c4","first_move_san":"c4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"c4-e5","label":"英式起手 · …e5"},"id":"w-english-opening-four-knights-system","title_zh":"英格蘭開局：四馬體系，尼姆佐維奇變例","title_en":"English Opening: Four Knights System, Nimzowitsch Variation","side":"白方","category":"主流","eco":"A28","styles":["局面","發展"],"mainline":"1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e4","variations":[]},{"first_move":"Nf3","first_move_san":"Nf3","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"Nf3-d5","label":"列蒂起手 · …d5"},"id":"w-reti-opening-anglo-slav-variation","title_zh":"列蒂開局：盎格魯斯拉夫變例","title_en":"Réti Opening: Anglo-Slav Variation","side":"白方","category":"主流","eco":"A14","styles":["局面","發展"],"mainline":"1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. Bg2 e6 5. b3 Be7 6. Bb2","variations":[{"name":"Anglo-Slav Variation, Bogoljubow Variation, Stonewall Line","line":"1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 c6 7. Bb2"},{"name":"Anglo-Slav Variation, with g3","line":"1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bf5 5. d3 h6 6. c4 e6"},{"name":"Anglo-Slav Variation, Torre System","line":"1. c4 Nf6 2. g3 c6 3. Nf3 d5 4. b3 Bg4 5. Bg2 e6 6. Bb2"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"w-amazon-attack","title_zh":"亞馬遜攻擊","title_en":"Amazon Attack","side":"白方","category":"趣味","eco":"D00","styles":["戰術","主動"],"mainline":"1. d4 d5 2. Qd3","variations":[{"name":"Siberian Attack","line":"1. d4 Nf6 2. Nc3 d5 3. Qd3"}]},{"first_move":"其他","first_move_san":"e3","reply_san":"e5","subgroup":{"id":"center","label":"中央預備"},"family":{"id":"其他-e3-e5","label":"不規則起手 · e3 …e5"},"id":"w-amsterdam-attack","title_zh":"阿姆斯特丹攻擊","title_en":"Amsterdam Attack","side":"白方","category":"趣味","eco":"A00","styles":["戰術","主動"],"mainline":"1. e3 e5 2. c4 d6 3. 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Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 O-O"},{"name":"Colle System, Traditional Colle","line":"1. d4 Nf6 2. Nf3 e6 3. e3 c5 4. Bd3 d5 5. c3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"w-queens-pawn-mengarini-attack","title_zh":"后兵開局：門加里尼攻擊","title_en":"Queen's Pawn, Mengarini Attack","side":"白方","category":"主流","eco":"E60","styles":["戰術","主動"],"mainline":"1. d4 Nf6 2. c4 g6 3. Qc2","variations":[]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"w-rapport-jobava-system-with-e6","title_zh":"拉波特－喬巴瓦體系：對…e6","title_en":"Rapport-Jobava System, with e6","side":"白方","category":"主流","eco":"D01","styles":["局面","發展"],"mainline":"1. d4 d5 2. Nc3 e6 3. 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Bb2 O-O"}]},{"first_move":"其他","first_move_san":"Na3","reply_san":"起手","subgroup":{"id":"knight","label":"馬類發展"},"family":{"id":"其他-Na3-起手","label":"不規則起手 · Na3 …起手"},"id":"w-sodium-attack","title_zh":"鈉攻擊","title_en":"Sodium Attack","side":"白方","category":"趣味","eco":"A00","styles":["戰術","主動"],"mainline":"1. Na3","variations":[{"name":"Celadon Variation","line":"1. Na3 e5 2. d3 Bxa3 3. bxa3 d5 4. e3 c5 5. Rb1"},{"name":"Durkin Gambit","line":"1. Na3 e5 2. Nc4 Nc6 3. e4 f5"},{"name":"Chenoboskion Variation","line":"1. Na3 g6 2. g4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-three-knights-opening","title_zh":"三馬開局","title_en":"Three Knights Opening","side":"白方","category":"主流","eco":"C46","styles":["局面","發展"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4","variations":[{"name":"Steinitz-Rosenthal Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 4. d4 exd4 5. 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Nc3 Nf6 3. f4 exf4 4. Nf3"},{"name":"Keoni-Hiva Gambit, Ekolu Variation","line":"1. e3 e5 2. Nc3 d5 3. f4 exf4 4. Nf3"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"w-vienna-gambit-with-max-lange-defense","title_zh":"維也納棄兵：馬克斯蘭格防禦","title_en":"Vienna Gambit, with Max Lange Defense","side":"白方","category":"主流","eco":"C25","styles":["戰術","主動"],"mainline":"1. e4 e5 2. Nc3 Nc6 3. f4","variations":[{"name":"Hamppe-Allgaier Gambit, Thorold Variation","line":"1. e4 e5 2. f4 exf4 3. Nf3 Nc6 4. Nc3 g5 5. h4 g4 6. Ng5 h6 7. Nxf7 Kxf7 8. d4"},{"name":"Steinitz Gambit, Main Line","line":"1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2"},{"name":"Hamppe-Muzio Gambit","line":"1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O gxf3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"w-yusupov-rubinstein-system","title_zh":"尤蘇波夫－魯賓斯坦體系","title_en":"Yusupov-Rubinstein System","side":"白方","category":"主流","eco":"A46","styles":["局面","發展"],"mainline":"1. d4 Nf6 2. Nf3 e6 3. e3","variations":[]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"w-blackmar-diemer-gambit-accepted","title_zh":"布萊克馬－迪默棄兵接受","title_en":"Blackmar-Diemer Gambit Accepted","side":"白方","category":"主流","eco":"D00","styles":["戰術","主動"],"mainline":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3","variations":[{"name":"Teichmann Defense, Classical Variation","line":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 Bg4 6. h3 Bxf3 7. Qxf3 c6 8. Be3"},{"name":"Euwe Defense, Zilbermints Gambit","line":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 e6 6. Bg5 Be7 7. Bd3 Nc6 8. O-O Nxd4 9. Kh1"},{"name":"Bogoljubow Defense, Kloss Attack","line":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 g6 6. Bc4 Bg7 7. O-O O-O 8. Kh1"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"w-blackmar-diemer-gambit-declined","title_zh":"布萊克馬－迪默棄兵拒絕","title_en":"Blackmar-Diemer Gambit Declined","side":"白方","category":"主流","eco":"D00","styles":["戰術","主動"],"mainline":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 e6 5. fxe4","variations":[{"name":"Lamb Defense","line":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Nc6"},{"name":"Gedult Defense","line":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 a6"},{"name":"Vienna Defense","line":"1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 Bf5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"b-sicilian-defense","title_zh":"西西里防禦","title_en":"Sicilian Defense","side":"黑方","category":"主流","eco":"B50","styles":["穩健","局面"],"mainline":"1. e4 c5 2. Nf3 d6 3. d4 cxd4","variations":[{"name":"Scheveningen Variation, Classical Main Line","line":"1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Be7 9. f4 d6 10. Qe1 O-O"},{"name":"Najdorf Variation, Main Line","line":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7"},{"name":"Dragon Variation, Yugoslav Attack, Main Line","line":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e6","label":"王兵起手 · …e6"},"id":"b-french-defense","title_zh":"法蘭西防禦","title_en":"French Defense","side":"黑方","category":"主流","eco":"C00","styles":["穩健","局面"],"mainline":"1. e4 e6 2. d4 d5","variations":[{"name":"Classical Variation, Burn Variation, Main Line","line":"1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Be7 6. Bxf6 Bxf6 7. Nf3 O-O"},{"name":"Tarrasch Variation, Open System, Main Line","line":"1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Bd6 7. dxc5 Bxc5 8. O-O Ne7 9. c3"},{"name":"Winawer Variation, Poisoned Pawn Variation, Main Line","line":"1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c6","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c6","label":"王兵起手 · …c6"},"id":"b-caro-kann-defense","title_zh":"卡羅康防禦","title_en":"Caro-Kann Defense","side":"黑方","category":"主流","eco":"B15","styles":["穩健","局面"],"mainline":"1. e4 c6 2. d4 d5 3. Nc3 dxe4","variations":[{"name":"Karpov Variation, Modern Main Line","line":"1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 Ngf6 6. Bd3 e6 7. N1f3 Bd6 8. Qe2 h6 9. Ne4 Nxe4 10. Qxe4"},{"name":"Karpov Variation, Smyslov Variation, Main Line","line":"1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bb3"},{"name":"Classical Variation, Spassky Variation","line":"1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-d5","label":"王兵起手 · …d5"},"id":"b-scandinavian-defense","title_zh":"斯堪地那維亞防禦","title_en":"Scandinavian Defense","side":"黑方","category":"主流","eco":"B01","styles":["穩健","局面"],"mainline":"1. e4 d5","variations":[{"name":"Main Line","line":"1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5"},{"name":"Schiller-Pytel Variation, Modern Variation","line":"1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 c6 6. Nge2 Bf5 7. Bf4 Qb4"},{"name":"Valencian Variation, Main Line","line":"1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 Bg4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"d6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-d6","label":"王兵起手 · …d6"},"id":"b-pirc-defense","title_zh":"皮爾茨防禦","title_en":"Pirc Defense","side":"黑方","category":"主流","eco":"B07","styles":["穩健","局面"],"mainline":"1. e4 d6 2. d4 Nf6 3. Nc3 g6","variations":[{"name":"Classical Variation, Quiet System, Chigorin Line","line":"1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Nc6"},{"name":"Classical Variation, Quiet System, Czech Defense","line":"1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6"},{"name":"Classical Variation, Quiet System, Parma Defense","line":"1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Bg4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"g6","subgroup":{"id":"king-wing","label":"王翼兵回應"},"family":{"id":"e4-g6","label":"王兵起手 · …g6"},"id":"b-modern-defense","title_zh":"現代防禦","title_en":"Modern Defense","side":"黑方","category":"主流","eco":"B06","styles":["穩健","局面"],"mainline":"1. e4 g6","variations":[{"name":"Standard Defense","line":"1. e4 g6 2. d4 Bg7 3. Nc3 d6"},{"name":"Pseudo-Austrian Attack","line":"1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4"},{"name":"Gurgenidze Defense","line":"1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"e4-Nf6","label":"王兵起手 · …Nf6"},"id":"b-alekhine-defense","title_zh":"阿廖欣防禦","title_en":"Alekhine Defense","side":"黑方","category":"主流","eco":"B02","styles":["穩健","局面"],"mainline":"1. e4 Nf6","variations":[{"name":"Normal Variation","line":"1. e4 Nf6 2. e5 Nd5"},{"name":"Modern Variation","line":"1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3"},{"name":"Four Pawns Attack","line":"1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"b6","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-b6","label":"王兵起手 · …b6"},"id":"b-owen-defense","title_zh":"歐文防禦","title_en":"Owen Defense","side":"黑方","category":"主流","eco":"B00","styles":["穩健","局面"],"mainline":"1. e4 b6","variations":[{"name":"Unicorn Variation","line":"1. e4 f6 2. d4 b6 3. c4 Bb7"},{"name":"Guatemala Defense","line":"1. e4 b6 2. d4 Ba6"},{"name":"Matovinsky Gambit","line":"1. e4 b6 2. d4 Bb7 3. Bd3 f5 4. exf5 Bxg2 5. Qh5+ g6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"Nc6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"e4-Nc6","label":"王兵起手 · …Nc6"},"id":"b-nimzowitsch-defense","title_zh":"尼姆佐維奇防禦","title_en":"Nimzowitsch Defense","side":"黑方","category":"主流","eco":"B00","styles":["穩健","局面"],"mainline":"1. e4 Nc6","variations":[{"name":"Colorado Countergambit","line":"1. e4 Nc6 2. Nf3 f5"},{"name":"Kennedy Variation, Main Line","line":"1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. f4 Ng6"},{"name":"El Columpio Defense, Pin Variation","line":"1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. Bb5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"a6","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-a6","label":"王兵起手 · …a6"},"id":"b-st-george-defense","title_zh":"聖喬治防禦","title_en":"St. George Defense","side":"黑方","category":"趣味","eco":"B00","styles":["戰術","主動"],"mainline":"1. e4 a6","variations":[{"name":"San Jorge Variation","line":"1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 d6 5. O-O g6 6. c3 Bg7"},{"name":"Polish Variation","line":"1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 e6"},{"name":"Zilbermints Gambit","line":"1. e4 a6 2. d4 e5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"b-petrovs-defense","title_zh":"彼得羅夫防禦","title_en":"Petrov's Defense","side":"黑方","category":"主流","eco":"C42","styles":["穩健","局面"],"mainline":"1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4","variations":[{"name":"Classical Attack, Chigorin Variation, Main Line","line":"1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. c4 Nb4 9. Be2"},{"name":"Classical Attack, Berger Variation","line":"1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O Nc6 8. Re1 Bg4 9. c3 f5 10. Nbd2"},{"name":"Classical Attack, Krause Variation","line":"1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. Re1 Bg4 9. c3 f5 10. c4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"b-philidor-defense","title_zh":"菲利多爾防禦","title_en":"Philidor Defense","side":"黑方","category":"主流","eco":"C41","styles":["穩健","局面"],"mainline":"1. e4 e5 2. Nf3 d6 3. Bc4 Be7","variations":[{"name":"Berger Variation","line":"1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 O-O 7. O-O c5 8. Nf3 Nc6 9. Bg5 Be6 10. Re1"},{"name":"Lion Variation, Sozin Variation","line":"1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. Qe2 c6 8. a4 exd4"},{"name":"Lion Variation, Forcing Line","line":"1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+ Rxf7 8. Ne6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"b-latvian-gambit","title_zh":"拉脫維亞棄兵","title_en":"Latvian Gambit","side":"黑方","category":"趣味","eco":"C40","styles":["戰術","主動"],"mainline":"1. e4 e5 2. Nf3 f5","variations":[{"name":"Behting Variation","line":"1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. Nf7 Qxg2 6. Rf1 d5 7. Nxh8 Nf6"},{"name":"Corkscrew Gambit","line":"1. e4 e5 2. Nf3 f5 3. Nxe5 Nf6 4. Bc4 fxe4 5. Nf7 Qe7 6. Nxh8 d5"},{"name":"Mayet Attack, Poisoned Pawn Variation","line":"1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. d4 Qxg2"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"b-elephant-gambit","title_zh":"大象棄兵","title_en":"Elephant Gambit","side":"黑方","category":"趣味","eco":"C40","styles":["戰術","主動"],"mainline":"1. e4 e5 2. Nf3 d5","variations":[{"name":"Wasp Variation","line":"1. e4 e5 2. Nf3 d5 3. Nxe5 dxe4 4. Bc4 Qg5"},{"name":"Maróczy Gambit","line":"1. e4 e5 2. Nf3 d5 3. exd5 Bd6"},{"name":"Paulsen Countergambit","line":"1. e4 e5 2. Nf3 d5 3. exd5 e4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"b-italian-game-two-knights-defense","title_zh":"義大利開局：雙馬防禦","title_en":"Italian Game: Two Knights Defense","side":"黑方","category":"主流","eco":"C58","styles":["穩健","局面"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. Bb5+ c6 7. dxc6 bxc6 8. Be2","variations":[{"name":"Two Knights Defense, Maróczy Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Na5 6. d3 h6 7. Nf3 e4 8. Qe2 Nxc4 9. dxc4 Be7"},{"name":"Two Knights Defense, Keidansky Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. e5 d5 6. Bb5 Ne4 7. Nxd4 Bc5 8. Nxc6 Bxf2+ 9. Kf1 Qh4"},{"name":"Two Knights Defense, Max Lange Attack, Loman Defense","line":"1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O Nf6 6. e5 d5 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 g6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"b-ruy-lopez-berlin-defense","title_zh":"西班牙開局：柏林防禦","title_en":"Ruy Lopez: Berlin Defense","side":"黑方","category":"主流","eco":"C65","styles":["穩健","局面"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O","variations":[{"name":"Berlin Defense, Berlin Wall","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. Nc3 Bd7"},{"name":"Berlin Defense, Winawer Attack","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nd4"},{"name":"Berlin Defense, Pillsbury Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. b3"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e5","label":"王兵起手 · …e5"},"id":"b-ruy-lopez-marshall-attack","title_zh":"西班牙開局：馬歇爾攻擊","title_en":"Ruy Lopez: Marshall Attack","side":"黑方","category":"主流","eco":"C89","styles":["戰術","主動"],"mainline":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5","variations":[{"name":"Marshall Attack, Main Line","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4"},{"name":"Marshall Attack, Modern Main Line","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3"},{"name":"Marshall Attack, Steiner Variation","line":"1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 e4"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-queens-gambit-declined","title_zh":"后翼棄兵拒絕","title_en":"Queen's Gambit Declined","side":"黑方","category":"主流","eco":"D56","styles":["戰術","主動"],"mainline":"1. d4 d5 2. c4 e6","variations":[{"name":"Lasker Defense, Main Line","line":"1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3"},{"name":"Orthodox Defense, Main Line","line":"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 O-O 7. Rc1 h6 8. Bh4 c5"},{"name":"Harrwitz Attack, Main Line","line":"1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. dxc5 Bxc5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-queens-gambit-accepted","title_zh":"后翼棄兵接受","title_en":"Queen's Gambit Accepted","side":"黑方","category":"主流","eco":"D24","styles":["戰術","主動"],"mainline":"1. d4 d5 2. c4 dxc4","variations":[{"name":"Central Variation, Alekhine System","line":"1. d4 d5 2. c4 dxc4 3. e4 Nf6"},{"name":"Old Variation","line":"1. d4 d5 2. c4 dxc4 3. e3"},{"name":"Godes Variation","line":"1. d4 d5 2. c4 dxc4 3. Nf3 Nd7"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-slav-defense","title_zh":"斯拉夫防禦","title_en":"Slav Defense","side":"黑方","category":"主流","eco":"D10","styles":["穩健","局面"],"mainline":"1. d4 d5 2. c4 c6","variations":[{"name":"Modern Line","line":"1. d4 d5 2. c4 c6 3. Nf3"},{"name":"Quiet Variation","line":"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3"},{"name":"Czech Variation, Classical System, Main Line","line":"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-semi-slav-defense","title_zh":"半斯拉夫防禦","title_en":"Semi-Slav Defense","side":"黑方","category":"主流","eco":"D43","styles":["穩健","局面"],"mainline":"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6","variations":[{"name":"Main Line","line":"1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 b6 7. b3 Bb7 8. Bd3 Be7 9. O-O O-O 10. Bb2"},{"name":"Normal Variation","line":"1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 Nf6 5. e3 Nbd7 6. b3 Bd6 7. Bb2 O-O 8. Be2"},{"name":"Meran Variation","line":"1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-kings-indian-defense","title_zh":"王翼印度防禦","title_en":"King's Indian Defense","side":"黑方","category":"主流","eco":"E61","styles":["穩健","局面"],"mainline":"1. d4 Nf6 2. c4 g6 3. Nc3","variations":[{"name":"Fianchetto Variation, Classical Main Line","line":"1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Nbd7 7. Nc3 e5 8. e4 c6 9. h3"},{"name":"Orthodox Variation, Positional Defense, Main Line","line":"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. Re1 c6 9. Bf1 a5"},{"name":"Sämisch Variation, Panno Main Line","line":"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6 7. Nge2 a6 8. Qd2 Rb8"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-grunfeld-defense","title_zh":"格林菲爾德防禦","title_en":"Grünfeld Defense","side":"黑方","category":"主流","eco":"D80","styles":["穩健","局面"],"mainline":"1. d4 Nf6 2. c4 g6 3. Nc3 d5","variations":[{"name":"Exchange Variation, Larsen Variation","line":"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8. Ne2 Qd7 9. O-O b6"},{"name":"Russian Variation, Yugoslav Variation","line":"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3 c5"},{"name":"Russian Variation, Smyslov Variation","line":"1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Be3 Nfd7 9. Qb3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-nimzo-indian-defense","title_zh":"尼姆佐印度防禦","title_en":"Nimzo-Indian Defense","side":"黑方","category":"主流","eco":"E50","styles":["穩健","局面"],"mainline":"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nf3","variations":[{"name":"Normal Variation, Gligoric System, Bernstein Defense","line":"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 dxc4 9. Bxc4 cxd4"},{"name":"Normal Variation, Bernstein Defense","line":"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3 dxc4 10. Bxc4"},{"name":"Normal Variation, Bernstein Defense, Exchange Line","line":"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Bxc3 9. bxc3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-queens-indian-defense","title_zh":"后翼印度防禦","title_en":"Queen's Indian Defense","side":"黑方","category":"主流","eco":"E12","styles":["穩健","局面"],"mainline":"1. d4 Nf6 2. c4 e6 3. Nf3 b6","variations":[{"name":"Classical Variation, Traditional Variation, Main Line","line":"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3"},{"name":"Classical Variation, Tiviakov Defense","line":"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Na6"},{"name":"Classical Variation, Traditional Variation, Nimzowitsch Line","line":"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 d5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-bogo-indian-defense","title_zh":"博戈印度防禦","title_en":"Bogo-Indian Defense","side":"黑方","category":"主流","eco":"E11","styles":["穩健","局面"],"mainline":"1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+","variations":[{"name":"Retreat Variation","line":"1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Bd2 Be7 5. Bg2 d5 6. Nf3 Nbd7 7. O-O O-O 8. Qc2 c6 9. Rd1 h6"},{"name":"Monticelli Trap","line":"1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Bxd2+ 7. Qxd2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Ng5"},{"name":"Haiti Variation","line":"1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Nc6"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-old-indian-defense","title_zh":"古印度防禦","title_en":"Old Indian Defense","side":"黑方","category":"主流","eco":"A53","styles":["穩健","局面"],"mainline":"1. d4 Nf6 2. c4 d6","variations":[{"name":"Janowski Variation, Main Line","line":"1. d4 Nf6 2. c4 d6 3. Nc3 Bf5 4. f3"},{"name":"Normal Variation","line":"1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. Nf3"},{"name":"Duz-Khotimirsky Variation","line":"1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. e3 Nbd7 5. Bd3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-benoni-defense","title_zh":"別諾尼防禦","title_en":"Benoni Defense","side":"黑方","category":"主流","eco":"A61","styles":["穩健","局面"],"mainline":"1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6","variations":[{"name":"Classical Variation, Main Line","line":"1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O"},{"name":"Four Pawns Attack, Main Line","line":"1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Nf3 O-O 9. Be2 Re8"},{"name":"Fianchetto Variation, Hastings Defense, Main Line","line":"1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O a6 10. a4 Nbd7 11. Nd2 Re8"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-benoni-defense-modern","title_zh":"現代別諾尼防禦","title_en":"Benoni Defense: Modern","side":"黑方","category":"主流","eco":"A60","styles":["穩健","局面"],"mainline":"1. d4 Nf6 2. c4 c5 3. d5 e6","variations":[{"name":"Modern Variation, Snake Variation","line":"1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 Bd6"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-benko-gambit","title_zh":"班科棄兵","title_en":"Benko Gambit","side":"黑方","category":"主流","eco":"A59","styles":["戰術","主動"],"mainline":"1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. g3","variations":[{"name":"Nd2 Variation","line":"1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. Nd2"},{"name":"Fianchetto Variation","line":"1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. Nf3 g6 8. g3"},{"name":"Nescafe Frappe Attack","line":"1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. Nc3 axb5 6. e4 b4 7. Nb5 d6 8. Bc4"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"f5","subgroup":{"id":"king-wing","label":"王翼兵回應"},"family":{"id":"d4-f5","label":"后兵起手 · …f5"},"id":"b-dutch-defense","title_zh":"荷蘭防禦","title_en":"Dutch Defense","side":"黑方","category":"主流","eco":"A84","styles":["穩健","局面"],"mainline":"1. d4 f5 2. c4","variations":[{"name":"Classical Variation, Ilyin-Zhenevsky Variation, Modern Main Line","line":"1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. b3"},{"name":"Classical Variation, Ilyin-Zhenevsky Variation, Winter Variation","line":"1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. Re1"},{"name":"Classical Variation, Ilyin-Zhenevsky Variation, Alatortsev-Lisitsyn Line","line":"1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d6 7. Nc3 Qe8 8. Qc2"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-indian-defense-budapest-gambit","title_zh":"布達佩斯棄兵","title_en":"Indian Defense: Budapest Gambit","side":"黑方","category":"趣味","eco":"A51","styles":["戰術","主動"],"mainline":"1. d4 Nf6 2. c4 e5","variations":[{"name":"Budapest Gambit Accepted, Main Line, Alekhine Variation, Abonyi Variation","line":"1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 Nxe5"},{"name":"Budapest Gambit Accepted, Main Line, Alekhine Variation, Tartakower Defense","line":"1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 d6"},{"name":"Budapest Gambit Accepted, Main Line, Adler Variation","line":"1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Nf3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-queens-gambit-declined-albin-countergambit","title_zh":"阿爾賓反棄兵","title_en":"Queen's Gambit Declined: Albin Countergambit","side":"黑方","category":"趣味","eco":"D08","styles":["戰術","主動"],"mainline":"1. d4 d5 2. c4 e5","variations":[{"name":"Albin Countergambit, Krenosz Variation","line":"1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3 Nc6 5. Nbd2 Bg4 6. h3 Bxf3 7. Nxf3 Bb4+ 8. Bd2 Qe7"},{"name":"Albin Countergambit, Normal Line","line":"1. d4 d5 2. c4 e5 3. dxe5 d4 4. Nf3"},{"name":"Albin Countergambit, Lasker Trap","line":"1. d4 d5 2. c4 e5 3. dxe5 d4 4. e3 Bb4+ 5. Bd2 dxe3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-queens-gambit-declined-chigorin-defense","title_zh":"奇戈林防禦","title_en":"Queen's Gambit Declined: Chigorin Defense","side":"黑方","category":"主流","eco":"D07","styles":["戰術","主動"],"mainline":"1. d4 d5 2. c4 Nc6 3. Nc3 dxc4","variations":[{"name":"Chigorin Defense, Exchange Variation, Costa's Line","line":"1. d4 d5 2. c4 Nc6 3. cxd5 Qxd5 4. e3 e5 5. Nc3 Bb4 6. Bd2 Bxc3 7. Bxc3 exd4 8. Ne2"},{"name":"Chigorin Defense, Main Line, Alekhine Variation","line":"1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. Qa4"},{"name":"Chigorin Defense, Main Line","line":"1. d4 d5 2. c4 Nc6 3. Nf3 Bg4"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-tarrasch-defense","title_zh":"塔拉什防禦","title_en":"Tarrasch Defense","side":"黑方","category":"主流","eco":"D32","styles":["穩健","局面"],"mainline":"1. d4 d5 2. c4 e6 3. Nc3 c5","variations":[{"name":"Classical Variation, Main Line","line":"1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Be3 Re8"},{"name":"Prague Variation, Main Line","line":"1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7"},{"name":"Classical Variation, Advance Variation","line":"1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5 c4"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"e5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-e5","label":"后兵起手 · …e5"},"id":"b-englund-gambit","title_zh":"英格蘭棄兵","title_en":"Englund Gambit","side":"黑方","category":"趣味","eco":"A40","styles":["戰術","主動"],"mainline":"1. d4 e5","variations":[{"name":"Main Line","line":"1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7"},{"name":"Stockholm Variation","line":"1. d4 e5 2. dxe5 Nc6 3. Nf3 Qe7 4. Qd5"},{"name":"Felbecker Gambit","line":"1. d4 e5 2. dxe5 Nc6 3. Nf3 Bc5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"b5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"d4-b5","label":"后兵起手 · …b5"},"id":"b-polish-defense","title_zh":"波蘭防禦","title_en":"Polish Defense","side":"黑方","category":"趣味","eco":"A40","styles":["戰術","主動"],"mainline":"1. d4 b5","variations":[{"name":"Spassky Gambit Accepted","line":"1. d4 b5 2. e4 Bb7 3. Bxb5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-e6","label":"后兵起手 · …e6"},"id":"b-english-defense","title_zh":"英國式防禦","title_en":"English Defense","side":"黑方","category":"主流","eco":"A40","styles":["穩健","局面"],"mainline":"1. d4 e6 2. c4 b6","variations":[{"name":"Perrin Variation","line":"1. d4 e6 2. c4 b6 3. e4 Bb7 4. Bd3 Nc6"},{"name":"Poli Gambit","line":"1. d4 e6 2. c4 b6 3. e4 Bb7 4. f3 f5 5. exf5 Nh6"},{"name":"Hartlaub Gambit Accepted","line":"1. c4 e6 2. d4 b6 3. Nc3 Bb7 4. e4 f5 5. exf5 Nf6"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-e6","label":"后兵起手 · …e6"},"id":"b-horwitz-defense","title_zh":"霍維茨防禦","title_en":"Horwitz Defense","side":"黑方","category":"主流","eco":"A40","styles":["穩健","局面"],"mainline":"1. d4 e6","variations":[{"name":"Zilbermints Gambit","line":"1. d4 e6 2. c4 e5"}]},{"first_move":"c4","first_move_san":"c4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"c4-e6","label":"英式起手 · …e6"},"id":"b-english-opening-symmetrical","title_zh":"英格蘭開局：對稱防禦","title_en":"English Opening: Symmetrical","side":"黑方","category":"主流","eco":"A30","styles":["穩健","局面"],"mainline":"1. c4 e6 2. Nf3 c5 3. Nc3 Nf6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 10. b3 Nbd7","variations":[]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nc6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nc6","label":"后兵起手 · …Nc6"},"id":"b-mikenas-defense","title_zh":"米克納斯防禦","title_en":"Mikenas Defense","side":"黑方","category":"主流","eco":"A40","styles":["穩健","局面"],"mainline":"1. d4 Nc6","variations":[{"name":"Lithuanian Variation","line":"1. d4 Nc6 2. c4 e5 3. d5 Nce7"},{"name":"Cannstatter Variation","line":"1. d4 Nc6 2. c4 e5 3. d5 Nd4"},{"name":"Pozarek Gambit","line":"1. d4 Nc6 2. c4 e5 3. dxe5 Nxe5 4. Nc3 Nxc4"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d6","label":"后兵起手 · …d6"},"id":"b-wade-defense","title_zh":"韋德防禦","title_en":"Wade Defense","side":"黑方","category":"主流","eco":"A41","styles":["穩健","局面"],"mainline":"1. d4 d6 2. Nf3 Bg4","variations":[]},{"first_move":"e4","first_move_san":"e4","reply_san":"d6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-d6","label":"王兵起手 · …d6"},"id":"b-czech-defense","title_zh":"捷克防禦","title_en":"Czech Defense","side":"黑方","category":"主流","eco":"B07","styles":["穩健","局面"],"mainline":"1. e4 d6 2. d4 Nf6 3. Nc3 c6","variations":[]},{"first_move":"e4","first_move_san":"e4","reply_san":"Nh6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"e4-Nh6","label":"王兵起手 · …Nh6"},"id":"b-hippopotamus-defense","title_zh":"河馬防禦","title_en":"Hippopotamus Defense","side":"黑方","category":"趣味","eco":"B00","styles":["戰術","主動"],"mainline":"1. e4 Nh6 2. d4 g6 3. c4 f6","variations":[]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-blumenfeld-countergambit","title_zh":"布盧門菲爾德反棄兵","title_en":"Blumenfeld Countergambit","side":"黑方","category":"趣味","eco":"E10","styles":["戰術","主動"],"mainline":"1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5","variations":[{"name":"Spielmann Variation","line":"1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5 exd5 6. cxd5 h6"},{"name":"Duz-Khotimirsky Variation","line":"1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5"},{"name":"Blumenfeld Countergambit Accepted","line":"1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"b-sicilian-defense-najdorf-variation","title_zh":"西西里防禦：納道夫變例","title_en":"Sicilian Defense: Najdorf Variation","side":"黑方","category":"主流","eco":"B98","styles":["穩健","局面"],"mainline":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7","variations":[{"name":"Najdorf Variation, Main Line","line":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7"},{"name":"Najdorf Variation, Traditional Line","line":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7"},{"name":"Najdorf Variation, Opocensky Variation, Traditional Line","line":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O O-O"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"b-sicilian-defense-dragon-variation","title_zh":"西西里防禦：龍式變例","title_en":"Sicilian Defense: Dragon Variation","side":"黑方","category":"主流","eco":"B72","styles":["穩健","局面"],"mainline":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3","variations":[{"name":"Dragon Variation, Yugoslav Attack, Main Line","line":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7"},{"name":"Dragon Variation, Classical Variation, Alekhine Line","line":"1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Be2 O-O 8. O-O d6 9. Nb3 a5"},{"name":"Dragon Variation, Classical Variation, Normal Line","line":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. Nb3"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"b-sicilian-defense-classical-variation","title_zh":"西西里防禦：古典變例","title_en":"Sicilian Defense: Classical Variation","side":"黑方","category":"主流","eco":"B58","styles":["穩健","局面"],"mainline":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2","variations":[{"name":"Classical Variation, Dragon Transfer","line":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 Nxd4 7. Qxd4 g6"},{"name":"Classical Variation, Anti-Sozin Variation","line":"1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6"},{"name":"Classical Variation, Sozin Attack","line":"1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"b-sicilian-defense-kan-variation","title_zh":"西西里防禦：康氏變例","title_en":"Sicilian Defense: Kan Variation","side":"黑方","category":"主流","eco":"B41","styles":["穩健","局面"],"mainline":"1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6","variations":[{"name":"Kan Variation, Maróczy Bind, Bronstein Variation","line":"1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Bc2"},{"name":"Kan Variation, Wing Attack, Christiansen's Dream","line":"1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Qg4"},{"name":"Kan Variation, Gipslis Variation","line":"1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O d6 7. c4 g6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c5","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c5","label":"王兵起手 · …c5"},"id":"b-sicilian-defense-lasker-pelikan-variation","title_zh":"西西里防禦：斯維什尼科夫變例","title_en":"Sicilian Defense: Lasker-Pelikan Variation","side":"黑方","category":"主流","eco":"B33","styles":["穩健","局面"],"mainline":"1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5","variations":[{"name":"Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation","line":"1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5"},{"name":"Lasker-Pelikan Variation, Bird Variation","line":"1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6"},{"name":"Lasker-Pelikan Variation, Sveshnikov Variation","line":"1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"e6","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-e6","label":"王兵起手 · …e6"},"id":"b-french-defense-rubinstein-variation","title_zh":"法蘭西防禦：魯賓斯坦變例","title_en":"French Defense: Rubinstein Variation","side":"黑方","category":"主流","eco":"C10","styles":["穩健","局面"],"mainline":"1. e4 e6 2. d4 d5 3. Nc3 dxe4","variations":[{"name":"Rubinstein Variation, Capablanca Line","line":"1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Ne5"},{"name":"Rubinstein Variation, Kasparov Attack","line":"1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. c3"},{"name":"Rubinstein Variation, Fort Knox Variation","line":"1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"c6","subgroup":{"id":"queen-wing","label":"后翼兵回應"},"family":{"id":"e4-c6","label":"王兵起手 · …c6"},"id":"b-caro-kann-defense-tartakower-variation","title_zh":"卡羅康防禦：塔塔科維變例","title_en":"Caro-Kann Defense: Tartakower Variation","side":"黑方","category":"主流","eco":"B15","styles":["穩健","局面"],"mainline":"1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6","variations":[{"name":"Tartakower Variation, Perlis Line","line":"1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8. Qc2 h6"}]},{"first_move":"e4","first_move_san":"e4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"e4-d5","label":"王兵起手 · …d5"},"id":"b-scandinavian-defense-portuguese-gambit","title_zh":"斯堪地那維亞防禦：葡萄牙棄兵","title_en":"Scandinavian Defense: Portuguese Gambit","side":"黑方","category":"主流","eco":"B01","styles":["戰術","主動"],"mainline":"1. e4 d5 2. exd5 Nf6 3. d4 Bg4","variations":[{"name":"Portuguese Gambit, Classical Variation","line":"1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Nf3"},{"name":"Portuguese Gambit, Jadoul Variation","line":"1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. c4"},{"name":"Portuguese Gambit, Melbourne Shuffle Variation","line":"1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. Nc3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-queens-gambit-declined-orthodox-defense","title_zh":"后翼棄兵拒絕：正統防禦","title_en":"Queen's Gambit Declined: Orthodox Defense","side":"黑方","category":"主流","eco":"D60","styles":["戰術","主動"],"mainline":"1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7","variations":[{"name":"Orthodox Defense, Main Line","line":"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. Nf3 O-O 7. Rc1 h6 8. Bh4 c5"},{"name":"Orthodox Defense, Classical Variation","line":"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5 10. Bxe7 Qxe7 11. O-O Nxc3 12. Rxc3 e5"},{"name":"Orthodox Defense, Capablanca System","line":"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Rc1 c6 8. Bd3 dxc4 9. Bxc4 Nd5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-queens-gambit-declined-cambridge-springs-defense","title_zh":"后翼棄兵拒絕：劍橋泉防禦","title_en":"Queen's Gambit Declined: Cambridge Springs Defense","side":"黑方","category":"主流","eco":"D52","styles":["戰術","主動"],"mainline":"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5","variations":[{"name":"Cambridge Springs Defense, Argentine Variation","line":"1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5 7. Nd2 Bb4 8. Qc2 O-O 9. Bh4"},{"name":"Cambridge Springs Defense, Bogoljubow Variation","line":"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 Bb4 8. Qc2"},{"name":"Cambridge Springs Defense, Yugoslav Variation","line":"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. cxd5 Nxd5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-slav-defense-chebanenko-variation","title_zh":"斯拉夫防禦：切巴年科變例","title_en":"Slav Defense: Chebanenko Variation","side":"黑方","category":"主流","eco":"D15","styles":["穩健","局面"],"mainline":"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. e3 Bf5","variations":[{"name":"Chebanenko Variation, Advance System","line":"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"d5","subgroup":{"id":"center","label":"中央兵回應"},"family":{"id":"d4-d5","label":"后兵起手 · …d5"},"id":"b-semi-slav-defense-meran-variation","title_zh":"半斯拉夫防禦：梅蘭變例（米蘭體系）","title_en":"Semi-Slav Defense: Meran Variation","side":"黑方","category":"主流","eco":"D48","styles":["穩健","局面"],"mainline":"1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5","variations":[{"name":"Meran Variation, Pirc Variation","line":"1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 b4"},{"name":"Meran Variation, Old Variation","line":"1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. e5"},{"name":"Meran Variation, Reynolds' Variation","line":"1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-kings-indian-defense-orthodox-variation","title_zh":"王翼印度防禦：正統變例","title_en":"King's Indian Defense: Orthodox Variation","side":"黑方","category":"主流","eco":"E95","styles":["穩健","局面"],"mainline":"1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nbd7 8. 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Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+ 7. bxc3 d6 8. O-O O-O"},{"name":"Rubinstein System, Rubinstein Variation, Main Line","line":"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. a3"},{"name":"Rubinstein System, Rubinstein Variation, Sherbakov Attack","line":"1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 cxd4 6. exd4 O-O 7. c5"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"f5","subgroup":{"id":"king-wing","label":"王翼兵回應"},"family":{"id":"d4-f5","label":"后兵起手 · …f5"},"id":"b-dutch-defense-leningrad-variation","title_zh":"荷蘭防禦：列寧格勒變例","title_en":"Dutch Defense: Leningrad Variation","side":"黑方","category":"主流","eco":"A87","styles":["穩健","局面"],"mainline":"1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3","variations":[{"name":"Leningrad Variation, Warsaw Variation","line":"1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 c6"},{"name":"Leningrad Variation, Matulovic Variation","line":"1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Nc6"},{"name":"Leningrad Variation, Carlsbad Variation","line":"1. d4 f5 2. g3 g6 3. Bg2 Bg7 4. Nh3"}]},{"first_move":"d4","first_move_san":"d4","reply_san":"Na6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Na6","label":"后兵起手 · …Na6"},"id":"b-australian-defense","title_zh":"澳洲防禦","title_en":"Australian Defense","side":"黑方","category":"趣味","eco":"A40","styles":["戰術","主動"],"mainline":"1. d4 Na6","variations":[]},{"first_move":"e4","first_move_san":"e4","reply_san":"f6","subgroup":{"id":"king-wing","label":"王翼兵回應"},"family":{"id":"e4-f6","label":"王兵起手 · …f6"},"id":"b-barnes-defense","title_zh":"巴恩斯防禦","title_en":"Barnes Defense","side":"黑方","category":"趣味","eco":"B00","styles":["戰術","主動"],"mainline":"1. e4 f6","variations":[]},{"first_move":"d4","first_move_san":"d4","reply_san":"Nf6","subgroup":{"id":"knight","label":"馬類回應"},"family":{"id":"d4-Nf6","label":"后兵起手 · …Nf6"},"id":"b-benko-gambit-accepted","title_zh":"班科棄兵接受","title_en":"Benko Gambit Accepted","side":"黑方","category":"主流","eco":"A57","styles":["戰術","主動"],"mainline":"1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6","variations":[{"name":"Yugoslav","line":"1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. 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