URS Ch, semi final

Alexander Kochyev (2490)

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1977.10
1/2 : 1/2

A. Petrosian (2345)

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1.Nf3 d5 2.c4 d4 3.e3 Nc6 4.exd4 Nxd4 5.Nxd4 Qxd4 6.Nc3 e5 7.d3 Ne7 8.Qe2 c6 9.Be3 Qd6 10.Ne4 Qb4+ 11.Nc3 Qd6 12.Ne4 Qb4+ 13.Nc3