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- B20-B99 1. e4 c5 - Sicilian Defense, B80-B85 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 Sicilian, Scheveningen variation, B83 - 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be2 Nf6 - Sicilian Defense: Scheveningen Variation, Modern Variation [+0.47], B83o - 6…Nc6 7.O-O Be7 8.Be3 O-O 9.f4 e5 10.Nb3 exf4 11.Bxf4 - Scheveningen Modern [+0.27], SÉRIE B 1.e4 2....
Johannesburg 1981 – Round 2 – Nunn, John D M – 1/2-1/2 – Andersson, Ulf 1949 – G9
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- B20-B99 1. e4 c5 - Sicilian Defense, B80-B85 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 Sicilian, Scheveningen variation, B81 - 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 - Sicilian [+0.70], B81i - 6…h6 7.h3 Nc6 8.Bg2 - Scheveningen Keres [+0.07], SÉRIE B 1.e4 2....
Johannesburg 1981 – Round 3 – Huebner, Robert – 1/2-1/2 – Andersson, Ulf 1949 – G14
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- D40-D42 – 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 – Queen’s Gambit Declined: Semi-Tarrasch Defense, D42 - 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 5.cxd5 Nxd5 6.e3 Nc6 7.Bd3 - QGD [+0.22], D42q - 7…cxd4 8.exd4 Be7 9.O-O O-O 10.Re1 Bf6 11.Be4 Nce7 - Semi-Tarrasch Main Line [+0.25], SÉRIE D
Johannesburg 1981 – Round 3 – Nunn, John D M – 1/2-1/2 – Huebner, Robert – G15
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- 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, 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 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 cxd4 - Spanish [+0.42], C99o - 13.cxd4 Nc6 14.Nb3 a5 15.Be3 a4 16.Nbd2 Bd7 - Closed Chigorin [+0.34], SÉRIE C
Johannesburg 1981 – Round 4 – Huebner, Robert – 1/2-1/2 – Korchnoi, Viktor – G22
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