[Event "Ch Bulgaria"] [Site "masterchessopen.com Sofia (Bulgaria)"] [Round "17"] [White "Ivanov Pavel (RUS)"] [Black "Piskov Kamen"] [Result "0-1"] [WhiteElo "2002"] [ECO "E41"] [Opening "Nimzo-Indian: 4.e3 c5"] 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.a3 Bxc3+ 6.bxc3 O-O 7.Bd3 Nc6 8.Nf3 b6 9.O-O cxd4 10.cxd4 Ba6 11.e4 d5 12.cxd5 Bxd3 13.Qxd3 exd5 14.e5 Ne4 15.Re1 Rc8 16.Nd2 Re8 17.f3 Qh4 18.g3 Nxg3 19.hxg3 Qxg3+ 20.Kf1 Qh3+ 21.Ke2 f6 22.Kd1 fxe5 23.dxe5 Nxe5 24.Qf1 Qf5 25.Ra2 Rxc1+ 26.Kxc1 Nd3+ 27.Qxd3 Rxe1+ 28.Kc2 Rc1+ 29.Kxc1 Qxd3 {#R} 0-1