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- D30-D39 1. d4 d5 2. c4 e6 Queen's gambit declined, D33 - 1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 - QGD Tarrasch [+0.30], D33q - 6…Nf6 7.Bg2 cxd4 8.Nxd4 Be7 9.O-O O-O 10.Be3 [+0.58], SÉRIE D
Siegen olm 1970 – Round 18 – Spassky, Boris V. – 1-0 – Yanofsky, Daniel Abraham – G31
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