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- 6...b5 7.Bb3 O-O, 8.c3 d5 9.d3, C80-C89 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 & C84-C89 C84 5. O-O Be7 Ruy Lopez, closed defence, C86 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 - Ruy Lopez: Closed, Worrall Attack, SÉRIE C
Interpolis 1990 – Round 12 – Short, Nigel D – 1/2-1/2 – Nikolic, Predrag – G37

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- 7.a4 Nc6, 8.Nc3 Be7 9.Qe2, D20-D29 1. d4 d5 2. c4 dxc4 Queen's gambit accepted, D27 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 - Queen's Gambit Accepted: Classical Defense, Main Line, SÉRIE D
Interpolis 1990 – Round 13 – Gelfand, Boris – 1/2-1/2 – Nikolic, Predrag – G39

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- 6...Nf6 7.Nc3 O-O, 8.Be2 d6 9.O-O a6, 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....
Interpolis 1990 – Round 13 – Kamsky, Gata – 1/2-1/2 – Andersson, Ulf 1949 – G40

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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
Interpolis 1990 – Round 14 – Seirawan, Yasser – 1/2-1/2 – Kamsky, Gata – G42

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- A80-A99 1. d4 f5 Dutch, A93 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. b3 - Dutch Defense: Stonewall Variation, Botvinnik Variation, A93 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4.... - Dutch Defense, SÉRIE A
Interpolis 1990 – Round 14 – Timman, Jan H – 1-0 – Short, Nigel D – G43

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