IBM

T. Petrosjan (2645)

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1973.07
1/2 : 1/2

Hans Ree (2480)

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1.d4 Nf6 2.c4 g6 3.d5 Bg7 4.g3 c6 5.Bg2 Qa5+ 6.Nc3 Qb4 7.Qd3 d6 8.Kf1 cxd5 9.cxd5 Na6 10.a3