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- 6.Ndb5 Bb4, 7.a3 Bxc3+ 8.Nxc3 d5, B20 - B99 - 1. e4 c5 - Sicilian Defense, B40 - B49 1. e4 c5 2. Nf3 e6 Sicilian defence, B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 - Sicilian Defense: Taimanov Variation, B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 - Sicilian Defense: Four Knights Variation, B45 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
World Cup 1989 – Round 1 – Ehlvest, Jaan – 1/2-1/2 – Andersson, Ulf 1949 – G26

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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, B86 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 - Sicilian Defense: Sozin Attack, B86 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
World Cup 1989 – Round 1 – Ehlvest, Jaan – 1/2-1/2 – Portisch, Lajos – G42

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- 6.g3 a6, 7.Bg2 Nf6 8.O-O Be7 9.Re1, B20 - B99 - 1. e4 c5 - Sicilian Defense, B40 - B49 1. e4 c5 2. Nf3 e6 Sicilian defence, B47 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 - Sicilian Defense: Taimanov Variation, Bastrikov Variation, SÉRIE B 1.e4 2....
World Cup 1989 – Round 1 – Ehlvest, Jaan – 1/2-1/2 – Ribli, Zoltan – G27

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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 1989 – Round 1 – Hjartarson, Johann – 0-1 – Nunn, John D M – G33

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- A10-A39 English Opening, A25 - 1. c4 e5 2. Nc3 Nc6 - English Opening: King's English Variation, Reversed Closed Sicilian, A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Rb1 Nh6 5. Bg2 Bg7 - English Opening: Closed, Taimanov Variation, A25 - 1. c4 e5 2. Nc3 Nc6 3. g3 g6 4.... - English Opening, SÉRIE A
World Cup 1989 – Round 1 – Hjartarson, Johann – 1-0 – Short, Nigel D – G4

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- 6...h6 7.Bxf6 Bxf6 — Orthodox, 8.Rc1 c6 9.Bd3 Nd7 10.O-O dxc4 11.Bxc4, D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D55 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 - Queen's Gambit Declined: Modern Variation, Normal Line, SÉRIE D
World Cup 1989 – Round 1 – Hjartarson, Johann – 1/2-1/2 – Jussupow, Artur – G10

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