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- 8.Nc3 Nc6, 9.d5 Na5 10.e4 c6 11.Bg5, D70-D79 1. d4 Nf6 2. c4 g6 3. f3 d5 Neo-Gruenfeld defence, D76 - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Nb6 - Neo-Grünfeld Defense: Delayed Exchange Variation, SÉRIE D
Interpolis 1990 – Round 5 – Ivanchuk, Vasyl – 1/2-1/2 – Gelfand, Boris – G16

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- A80-A99 1. d4 f5 Dutch, A92 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O - Dutch Defense: Classical Variation, A92 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O Ne4 - Dutch Defense: Alekhine Variation, A92 - 1. d4 f5 2. c4 Nf6 3. g3 e6 4.... - Dutch Defense, SÉRIE A
Interpolis 1990 – Round 5 – Nikolic, Predrag – 0-1 – Short, Nigel D – G15

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- 5...d6, A10-A39 English Opening, A36 - 1. c4 c5 2. e4 Nc6 3. Nc3 g6 4. g3 Bg7 5. Bg2 - English Opening: Symmetrical Variation, Botvinnik System, A36 - 1. c4 c5 2. Nc3 Nc6 3. g3 - English Opening: Symmetrical Variation, Two Knights, Fianchetto Variation, SÉRIE A
Interpolis 1990 – Round 5 – Seirawan, Yasser – 1/2-1/2 – Andersson, Ulf 1949 – G14

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