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- 10.Nb3 — Main Line, 9.Nc1 e5 — Main Line, E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E84 - 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 - King's Indian Defense: Sämisch Variation, Panno Main Line, SÉRIE E
World Cup 1991 – Round 3 – Beliavsky, Alexander G – 1/2-1/2 – Hjartarson, Johann – G23

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- 6.Qc2 Bd6, 7.Be2 O-O 8.O-O Re8, D43-D49 Queen's Gambit Declined semi-Slav1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6, D45 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 - Semi-Slav Defense: Main Line, D45 - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6 - Semi-Slav Defense: Accelerated Meran Variation, SÉRIE D
World Cup 1991 – Round 3 – Gulko, Boris – 1/2-1/2 – Speelman, Jon S – G22

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- D80-D99 Gruenfeld defence1. d4 Nf6 2. c4 g6 3. Nc3 d5, D88 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O cxd4 11. cxd4 - Grünfeld Defense: Exchange Variation, Spassky Variation, SÉRIE D
World Cup 1991 – Round 3 – Ivanchuk, Vasyl – 1/2-1/2 – Ehlvest, Jaan – G24

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- 7...Ne4 8.Bd2 Bf6, 9.Rc1, E12-E19 1. d4 Nf6 2. c4 e6 3. Nf3 b6 Queen's Indian defence, E18 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 - Queen's Indian Defense: Classical Variation, Traditional Variation, SÉRIE E
World Cup 1991 – Round 3 – Karpov, Aleksandr – 1-0 – Salov, Valery – G21

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- 6.O-O O-O — Main Line, E01-E09 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Catalan, closed, E05 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 - Catalan Opening: Open Defense, Classical Line, E05 – 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. ..., SÉRIE E
World Cup 1991 – Round 3 – Khalifman, Alexander – 1/2-1/2 – Portisch, Lajos – G20

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