[Event "It"] [Site "masterchessopen.com - Pinar del Rio (Cuba)"] [Round "4"] [White "Otero Evelio (CUB)"] [Black "Chavez Hector Eduardo (ESA)"] [Result "1-0"] [WhiteElo "2405"] [BlackElo "2147"] [ECO "A12"] [Opening "English: London Defence"] 1.c4 c6 2.Nf3 d5 3.b3 Nf6 4.g3 Bf5 5.Bg2 e6 6.O-O Be7 7.Bb2 O-O 8.d3 Nbd7 9.Nbd2 Qb6 10.Qc2 Rfc8 11.Rac1 Qd8 12.Qb1 a5 13.a3 b5 14.cxb5 cxb5 15.Nd4 Bg6 16.Nxb5 Qb6 17.a4 Bc5 18.Qa1 e5 19.Bh3 Re8 20.Ba3 e4 21.Bxc5 Nxc5 22.Qd4 Nfd7 23.Bxd7 Nxd7 24.Qxb6 Nxb6 25.Nc7 exd3 26.Nxa8 {#r} 1-0