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- 4...Nc6 5.Bb5 Bd7 — Main Line, 6.Bxc6 Bxc6 7.Nc3 Nf6 8.Bg5 e6 9.O-O-O Be7 10.Rhe1 — Main Line, B20 - B99 - 1. e4 c5 - Sicilian Defense, B50-B59 Sicilian 1. e4 c5 2. Nf3 d6, B53 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 - Sicilian Defense: Chekhover Variation, B53 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
ch-Wereld Teams 1989 – Round 1 – Ivanchuk, Vasyl – 1/2-1/2 – Sosonko, Gennadi – G54

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- 4...Ba6 5.b3 Bb4+ — Main Line, 6.Bd2 Be7 7.Bg2 c6 8.O-O d5, E12-E19 1. d4 Nf6 2. c4 e6 3. Nf3 b6 Queen's Indian defence, E15 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 - Queen's Indian Defense: Fianchetto Variation, SÉRIE E
ch-Wereld Teams 1989 – Round 1 – Karpov, Aleksandr – 1-0 – Adorjan, Alex – G28

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- 6...Be7 7.e3 Nbd7 — Exchange, 8.Bd3 O-O 9.Nf3 Re8 10.O-O Nf8 11.h3 — Main Line, D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined, D36 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 - Queen's Gambit Declined: Exchange Variation, Reshevsky Variation, SÉRIE D
ch-Wereld Teams 1989 – Round 1 – Karpov, Aleksandr – 1-0 – Short, Nigel D – G26

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- 6.Bd2 Be7 — Capablanca, 7.Nc3 O-O 8.O-O d5, E12-E19 1. d4 Nf6 2. c4 e6 3. Nf3 b6 Queen's Indian defence, E16 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ - Queen's Indian Defense: Capablanca Variation, SÉRIE E
ch-Wereld Teams 1989 – Round 1 – Karpov, Aleksandr – 1/2-1/2 – Ljubojevic, Ljubomir – G27

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- 7.Be3 Ng4 — Main Line, 8.Bg5 f6 9.Bh4, E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E92 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 - King's Indian Defense: Orthodox Variation, SÉRIE E
ch-Wereld Teams 1989 – Round 1 – Korchnoi, Viktor – 1-0 – Fedorowicz, John – G77

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- 7.Be3 (not 7...Qe7, 7...c6, 7...exd4, 7...Ng4), E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E92 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 - King's Indian Defense: Orthodox Variation, SÉRIE E
ch-Wereld Teams 1989 – Round 1 – Korchnoi, Viktor – 1-0 – Ye Lin, Jennifer – G34

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- 6...h6 7.Bh4 b6 — Orthodox, 8.cxd5 Nxd5 9.Nxd5 exd5 10.Bxe7 Qxe7 — Main Line, D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D54 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. Bg5 Be7 5. e3 O-O 6. Rc1 - Queen's Gambit Declined: Neo-Orthodox Variation, SÉRIE D
ch-Wereld Teams 1989 – Round 1 – Korchnoi, Viktor – 1/2-1/2 – Nogueiras Santiago, Jesus – G4

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- 6...Nf6 7.Nc3 O-O, 8.Be2 d6 9.O-O, B20 - B99 - 1. e4 c5 - Sicilian Defense, B30 - B39 1.e4 c5 2. Nf3 Nc6 Sicilian defence, B38 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 - Sicilian Defense: Accelerated Dragon, Maróczy Bind, B38 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
ch-Wereld Teams 1989 – Round 1 – Ljubojevic, Ljubomir – 1-0 – Hamdouchi, Hicham – G45

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- B20 - B99 - 1. e4 c5 - Sicilian Defense, B80-B85 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 Sicilian, Scheveningen variation, B89 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 - Sicilian Defense: Sozin Attack, Main Line, SÉRIE B 1.e4 2....
ch-Wereld Teams 1989 – Round 1 – Ljubojevic, Ljubomir – 1/2-1/2 – Korchnoi, Viktor – G49

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