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- 6.O-O O-O — Main Line, 7.Qc2 a6 8.Qxc4 b5 9.Qc2 Bb7 10.Bd2 (not 10...Be4), E01-E09 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Catalan, closed, E05 - 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7 - Catalan Opening: Open Defense, Classical Line, SÉRIE E
Belgrade 1989 – Round 1 – Hjartarson, Johann – 0-1 – Short, Nigel D – G3

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- 4...O-O 5.a3 Bxc3+, 6.Qxc3 b6 7.Bg5 Bb7 8.f3 (not 8...h6), E20-E59 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 Nimzo-Indian defence, E32 - 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 - Nimzo-Indian Defense: Classical Variation, SÉRIE E
Belgrade 1989 – Round 1 – Hjartarson, Johann – 1/2-1/2 – Timman, Jan H – G6

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- 7...c5 8.Qd2 O-O — Exchange, 9.Rc1, D80-D99 Gruenfeld defence1. d4 Nf6 2. c4 g6 3. Nc3 d5, D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 - Grünfeld Defense: Exchange Variation, Modern Exchange Variation, D85 - 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5- Grünfeld Defense, SÉRIE D
Belgrade 1989 – Round 1 – Jussupow, Artur – 0-1 – Timman, Jan H – G12

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- 8.Be2 Bb7 — Tartakower, 9.Bxf6 Bxf6 10.cxd5 exd5 11.b4 c6 12.O-O, D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D58 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 b6 - Queen's Gambit Declined: Tartakower Defense, SÉRIE D
Belgrade 1989 – Round 1 – Kasparov, Garry – 1-0 – Ehlvest, Jaan – G10

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- 7...cxd4 8.Nxd4 Nxd4 — Main Line, 9.Qxd4 d6 (not 10.Qd2, 10.Qd3), A10-A39 English Opening, A39 - 1. c4 Nf6 2. Nf3 c5 3. Nc3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. d4 - English Opening: Symmetrical Variation, Mecking Variation, SÉRIE A
Belgrade 1989 – Round 1 – Ljubojevic, Ljubomir – 1/2-1/2 – Ehlvest, Jaan – G1

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- 6.g3 Nc6, 7.Bg2 a6 8.O-O Bd7, B20 - B99 - 1. e4 c5 - Sicilian Defense, B80 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 - Sicilian Defense: Scheveningen Variation, B80 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4.... - Sicilian Defense, B80-B85 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 Sicilian, Scheveningen variation, SÉRIE B 1.e4 2....
Belgrade 1989 – Round 1 – Popovic, Patrik – 0-1 – Short, Nigel D – G17

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- 6...Bg4, B20 - B99 - 1. e4 c5 - Sicilian Defense, B90-B99 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 Sicilian, Najdorf, B91 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 - Sicilian Defense: Najdorf Variation, Zagreb Variation, B91 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense, SÉRIE B 1.e4 2....
Belgrade 1989 – Round 1 – Popovic, Patrik – 1/2-1/2 – Ljubojevic, Ljubomir – G14

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