[Event "Ukrainian Championship"]
[Site "Kiev URS"]
[Date "1957.05.27"]
[EventDate "1957.05.08"]
[Round "13"]
[Result "0-1"]
[White "Boris A Korsakov"]
[Black "Mark V Usachyi"]
[ECO "D33"]
[WhiteElo "?"]
[BlackElo "?"]
[PlyCount "86"]

1.d4 Nf6 2.c4 e6 3.Nc3 d5 4.Nf3 c5 5.cxd5 exd5 6.g3 Nc6 7.Bg2
Bg4 8.dxc5 Bxc5 9.O-O d4 10.Nb1 O-O 11.Nbd2 Re8 12.h3 Bh5 13.g4
Bg6 14.Nh4 Qe7 15.Nxg6 hxg6 16.g5 Nd7 17.Ne4 Rad8 18.Kh1 Bb6
19.f4 Nc5 20.Nxc5 Qxc5 21.Bd2 Rd7 22.b4 Nxb4 23.Rc1 Qd6 24.f5
Nd5 25.fxg6 fxg6 26.Qb3 Kh7 27.Qd1 Bc7 28.Rxc7 Qxc7 29.Qe1 Qe5
30.Qh4+ Kg8 31.Qg4 Rde7 32.Rf2 b5 33.Bf3 Rf7 34.Rf1 a5 35.Kg2
b4 36.Kh1 Rf5 37.Qg2 a4 38.Re1 Ne3 39.Bxe3 dxe3 40.Rg1 b3 41.axb3
a3 42.Qg4 Rf4 43.Qg3 a2 0-1