[Event "Ch URS (1/2 final)"] [Site "masterchessopen.com - Leningrad (Russia)"] [Round "7"] [White "Mazel Isaak (RUS)"] [Black "Botvinnik Mikhail M (RUS)"] [Result "0-1"] [BlackElo "2630"] [ECO "A19"] [Opening "English: Mikenas, Sicilian Variation"] 1.c4 Nf6 2.Nc3 e6 3.e4 c5 4.f4 Nc6 5.Nf3 d5 6.e5 Ng4 7.cxd5 exd5 8.Qb3 Nb4 9.a3 c4 10.Qa4+ Bd7 11.Qd1 Qb6 {#R} 0-1