[Event "It (open) \"] [Site "masterchessopen.com - Buenos Aires (Argentina)"] [Round "8"] [White "Puyou Guillermo (ARG)"] [Black "Pingas Blas (ARG)"] [Result "0-1"] [WhiteElo "2258"] [BlackElo "2232"] [ECO "A44"] [Opening "Old Benoni: Czech, 3.e4 d6 4.Nc3"] 1.d4 c5 2.d5 e5 3.e4 d6 4.Nc3 Be7 5.Be2 Bg5 6.Bb5+ Nd7 7.Nf3 Bxc1 8.Qxc1 Ne7 9.a4 O-O 10.g3 Nf6 11.a5 Bh3 12.Nd2 h6 13.a6 b6 14.Rg1 Bd7 15.g4 Ng6 16.Bxd7 Qxd7 17.f3 Nh7 18.Ne2 Ng5 19.Rg3 Nh4 20.Ng1 b5 21.Nf1 Rae8 22.Ne3 g6 23.Ng2 {#R} 0-1