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- 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 [+0.43], B45s - 5…Nf6 6.Ndb5 Bb4 7.a3 Bxc3+ 8.Nxc3 d5 - Taimanov Four Knights [+0.29], SÉRIE B 1.e4 2....
World Cup 1989 – Round 1 – Ehlvest, Jaan – 1/2-1/2 – Andersson, Ulf 1949 – G26
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- C40-C49 1. e4 e5 2. Nf3 King's knight opening, C42 - 1.e4 e5 2.Nf3 Nf6 - Russian Game (Petroff Defence) [+0.41], C42x - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.Re1 Bg4 9.c3 - Russian Game [+0.21], SÉRIE C
World Cup 1989 – Round 1 – Ehlvest, Jaan – 1/2-1/2 – Jussupow, Artur – G70
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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 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 - Sicilian [+0.17], B86e - 6…a6 7.Bb3 Be7 - Sozin-Najdorf [+0.46], SÉRIE B 1.e4 2....
World Cup 1989 – Round 1 – Ehlvest, Jaan – 1/2-1/2 – Portisch, Lajos – G42
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- 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 [+0.36], B47p - 6.g3 a6 7.Bg2 Nf6 8.O-O Be7 9.Re1 - Taimanov [+0.54], SÉRIE B 1.e4 2....
World Cup 1989 – Round 1 – Ehlvest, Jaan – 1/2-1/2 – Ribli, Zoltan – G27
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- 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 [+0.64], E84h - 9.Nc1 e5 10.Nb3 - Saemisch Panno Main Line [-0.02], SÉRIE E
World Cup 1989 – Round 1 – Hjartarson, Johann – 0-1 – Nunn, John D M – G33
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- D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D55 - 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 - QGD [+0.18], D55k - 6…h6 7.Bxf6 Bxf6 8.Rc1 c6 9.Bd3 Nd7 10.O-O dxc4 11.Bxc4 - Neo-Orthodox Petrosian Variation [+0.09], SÉRIE D
World Cup 1989 – Round 1 – Hjartarson, Johann – 1/2-1/2 – Jussupow, Artur – G10
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- C40-C49 1. e4 e5 2. Nf3 King's knight opening, C42 - 1.e4 e5 2.Nf3 Nf6 - Russian Game (Petroff Defence) [+0.41], C42u - 3.Nxe5 d6 4.Nf3 Nxe4 5.d4 d5 6.Bd3 Be7 7.O-O Nc6 8.c4 Nb4 9.Be2 O-O - Russian Game: Classical Jaenisch Main Line [+0.39], SÉRIE C
World Cup 1989 – Round 1 – Hjartarson, Johann – 1/2-1/2 – Jussupow, Artur – G64
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