Buenos Aires olm

Lajos Portisch (2630)

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1978.10
1 : 0

W. Schmidt (2505)

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1.c4 Nf6 2.Nc3 c5 3.g3 d5 4.cxd5 Nxd5 5.Bg2 e6 6.Nf3 Nc6 7.O-O Be7 8.d4 O-O 9.e4 Ndb4 10.d5 exd5 11.exd5 Nd4