[Event "It (open)"] [Site "masterchessopen.com – Buenos Aires (Argentina)"] [Round "1"] [White "Mackeprang Luis (ARG)"] [Black "Szmukler Ruben (ARG)"] [Result "0-1"] [WhiteElo "2121"] [BlackElo "2136"] [ECO "B30"] [Opening "Sicilian: 2...Nc6 3.Nc3"] 1.e4 c5 2.Nf3 Nc6 3.Nc3 d6 4.d4 cxd4 5.Nxd4 Nf6 6.Bc4 e6 7.Be3 Be7 8.O-O Qc7 9.a4 a6 10.Rb1 O-O 11.b4 Ne5 {#R} 0-1