[Event "Ch Pan-American"] [Site "masterchessopen.com – Merida (Mexico)"] [Round "0"] [White "Leonel Davi"] [Black "Yamashita Rober"] [Result "1-0"] [ECO "B90"] [Opening "Sicilian: Najdorf"] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 b5 7.Bb3 Nbd7 8.Nd5 Bb7 9.O-O Nxe4 10.Qf3 Nec5 11.Qc3 Nxb3 12.Nc7+ Qxc7 13.Qxc7 Ra7 14.Nc6 Bxc6 15.Qc8# 1-0