[Event "It"] [Site "masterchessopen.com - Tunja (Colombia)"] [Round "2"] [White "Knaak Rainer (GER)"] [Black "Gonzalez Gelasio (CUB)"] [Result "1-0"] [WhiteElo "2530"] [BlackElo "2088"] [ECO "A58"] [Opening "Benko Gambit: 5.bxa6"] 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.e4 g6 8.Bxa6 Rxa6 9.Nf3 Nbd7 10.O-O Bg7 11.Qe2 Qb6 12.e5 dxe5 13.Nxe5 Nxe5 14.Qxe5 O-O 15.Qe2 Rb8 16.Bf4 Rb7 17.Rac1 Ra8 18.b3 Qb4 19.Be3 Rd7 20.Rfd1 Rad8 21.Qc4 Rc8 22.h3 h5 23.a4 Rb7 24.Nb5 Qxc4 25.Rxc4 Nd7 26.b4 Nb6 27.Rxc5 Rxc5 28.bxc5 Nxa4 29.c6 {#r} 1-0