[Event "Ch Pan-American (juniors) (under 20)"] [Site "masterchessopen.com Macas (Ecuador)"] [Round "4"] [White "Angamarca Angamarca Carlos (ECU)"] [Black "Grosso Juan (ARG)"] [Result "1-0"] [WhiteElo "2051"] [BlackElo "2227"] [ECO "B90"] [Opening "Sicilian: Najdorf"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.O-O-O Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7 13.f5 e5 14.Nd5 Bxg5+ 15.Kb1 Qb7 16.Qh5 Bf6 17.Ne6 Rb8 18.Rg1 Qa7 19.Nxg7+ Kf8 20.Ne6+ Ke8 21.Nec7+ {#r} 1-0