[Event "Leningrad"] [Site "?"] [Round "0"] [White "Mazel"] [Black "Botvinnik"] [Result "0-1"] [ECO "A19"] [Opening "English: Mikenas, Sicilian Variation"] 1. c4 Nf6 2. Nc3 e6 3. e4 { White gains space and hopes to discourage Black from an eventual ...d5.} 3... c5 {Black hopes to proves that d4 is a weakness.} 4. f4 { This gains more space in the center but wastes time and weakens his kingside.} 4... Nc6 5. Nf3 d5 {So Black plays ...d5 after all, reckoning that White's weaknesses and loss of time allow it.} 6. e5 Ng4 7. cxd5 exd5 8. Qb3 { Playing with fire. Having already made five pawn moves, White shouldn't be wasting time with his queen.} 8... Nb4 { Covering both d5 and b7 and eyeing the hole at d3.} 9. a3 { The final loss of time. White doesn't see the real danger of Black's next move. } 9... c4 {Not only gaining time and taking over d3 but opening the a7-g1 diagonal as well.} 10. Qa4+ {Losing more time, since the queen must go to d1 anyway, though it doesn't really matter.} 10... Bd7 11. Qd1 Qb6 { White resigned here, since his queen can't cover both c2 and f2, e.g.} 12. d4 cxd3 13. Qd2 Nc2+ 0-1