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- 6.Qc2 Bd6, D43-D49 Queen's Gambit Declined semi-Slav1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6, D45a - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 - Semi-Slav Defense: Main Line, D45e - 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. e3 e6 5. Nf3 a6 - Semi-Slav Defense: Accelerated Meran Variation, D45r - 7.b3 O-O 8.Be2 (not 8...Re8, 8...b6), SÉRIE D
OHRA-A 1986 – Round 1 – Portisch, Lajos – 1/2-1/2 – Huebner, Robert – G2

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- 8.Rc1 Bb7 — Tartakower, D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D58a - 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, D58p - 8...Bb7 (not 9.Bxf6, 9.cxd5), SÉRIE D
OHRA-A 1986 – Round 1 – Portisch, Lajos – 1/2-1/2 – Kasparov, Garry – G1

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- 8.Ne5 e6 — Main Line, D70-D79 1. d4 Nf6 2. c4 g6 3. f3 d5 Neo-Gruenfeld defence, D79a - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. cxd5 cxd5 - Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation, D79k - 9.Nc3 Nfd7 10.f4 (not 10...Nc6), SÉRIE D
OHRA-A 1986 – Round 1 – Portisch, Lajos – 1/2-1/2 – Nunn, John D M – G11

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- 6...h6 7.Bxf6 Bxf6 — Orthodox, D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D55a - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 - Queen's Gambit Declined: Modern Variation, Normal Line, D55j - 8.Rc1, SÉRIE D
OHRA-A 1986 – Round 1 – Portisch, Lajos – 1/2-1/2 – Short, Nigel D – G4

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- 6.Be3 a6, B20 - B99 - 1. e4 c5 - Sicilian Defense, 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, B80a - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 - Sicilian Defense: Scheveningen Variation, B80l - 7.f3 b5 8.Qd2 Bb7 9.g4, SÉRIE B 1.e4 2....
OHRA-A 1986 – Round 1 – Short, Nigel D – 1-0 – Huebner, Robert – G12

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- 13.d5 Nd8, C90-C99 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d6 Ruy Lopez, closed, C98 - 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Nc6 - Ruy Lopez: Closed, Chigorin Defense, C98h - 14.Nf1, SÉRIE C
OHRA-A 1986 – Round 2 – Nunn, John D M – 1-0 – Short, Nigel D – G18

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- D50-D69 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Queen's Gambit Declined, 4.Bg5, D61 - 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 O-O 6. e3 Nbd7 7. Qc2 - Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation, SÉRIE D
OHRA-A 1986 – Round 5 – Kasparov, Garry – 1-0 – Portisch, Lajos – G19

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- 4.exd5 Qxd5 — Main Line, C00-C19 1. e4 e6 French defence, C07a - 1. e4 e6 2. d4 d5 3. Nd2 c5 - French Defense: Tarrasch Variation, Open System, C07r - 5...cxd4 6.Bc4 Qd6 7.O-O Nf6 8.Nb3 Nc6 9.Nbxd4 Nxd4 10.Nxd4 a6 (not 11.Re1, 11.c3), SÉRIE C
OHRA-A 1986 – Round 6 – Huebner, Robert – 1-0 – Korchnoi, Viktor – G22

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- 8.Ne5 e6 — Main Line, D70-D79 1. d4 Nf6 2. c4 g6 3. f3 d5 Neo-Gruenfeld defence, D79a - 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 c6 6. O-O d5 7. cxd5 cxd5 - Neo-Grünfeld Defense: Ultra-Delayed Exchange Variation, D79k - 9.Nc3 Nfd7 10.f4 (not 10...Nc6), SÉRIE D
OHRA-A 1986 – Round 6 – Kasparov, Garry – 1-0 – Nunn, John D M – G20

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