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- 6.e4 b5 — Main Line, 7.e5 h6 8.Bh4 g5 9.Nxg5 Nd5, D43-D49 Queen's Gambit Declined semi-Slav1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6, D44 - 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 - Semi-Slav Defense Accepted, SÉRIE D
Buenos Aires 1980 – Round 1 – Timman, Jan H – 1-0 – Ljubojevic, Ljubomir – G6

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- 4...Ba6 5.b3 Bb4+ — Main Line, 6.Bd2 Be7 7.Bg2 c6 8.O-O d5, E12-E19 1. d4 Nf6 2. c4 e6 3. Nf3 b6 Queen's Indian defence, E15 - 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 - Queen's Indian Defense: Fianchetto Variation, SÉRIE E
Buenos Aires 1980 – Round 1 – Timman, Jan H – 1/2-1/2 – Hort, Vlastimil – G7

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