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- 6...Be7 7.e3 Nbd7 — Exchange, 8.Bd3 O-O 9.Nf3 Re8 10.h3 Nf8 11.Bf4 — Main Line, D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined, D36 - 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 c6 6. Qc2 - Queen's Gambit Declined: Exchange Variation, Reshevsky Variation, SÉRIE D
World Cup 1988 – Round 1 – Portisch, Lajos – 1/2-1/2 – Beliavsky, Alexander G – G16

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- 5.Bxc4 c5, 6.Qe2 a6 7.dxc5 Bxc5 8.O-O b5, D20-D29 1. d4 d5 2. c4 dxc4 Queen's gambit accepted, D26 - 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 - Queen's Gambit Accepted: Normal Variation, Traditional System, SÉRIE D
World Cup 1988 – Round 1 – Portisch, Lajos – 1/2-1/2 – Ehlvest, Jaan – G8

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- 8.Nc3 Nc6, 9.e3 Re8 10.d5, 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
World Cup 1988 – Round 1 – Portisch, Lajos – 1/2-1/2 – Kasparov, Garry – G44

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- 7.d5 h6, 8.Be3 e6 (not 9.Qd2), E60-E99 1. d4 Nf6 2. c4 g6 King's Indian defence, E74 - 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 - King's Indian Defense: Averbakh Variation, Benoni Defense, SÉRIE E
World Cup 1988 – Round 1 – Portisch, Lajos – 1/2-1/2 – Nunn, John D M – G53

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