[Event "Leningrad"] [Site "?"] [Round "0"] [White "Botvinnik"] [Black "Timofeyev"] [Result "1-0"] [ECO "D26"] [Opening "QGA: 4.e3 e6 5.Bxc4"] 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 Bb4+ 6. Nc3 a6 7. Qc2 Nfd7 8. e4 Nc6 9. Be3 {White has complete control of the center, which will provide the basis for an attack. The 17-year old Botvinnik shows that he understands the opening well.} 9... Na5 {His opponent lacks such wisdom, and violates opening principles by failing to continue with development.} 10. Bd3 Nb6 11. a3 Bd6 12. Rd1 O-O {Finally! But now this loses a pawn immediately.} 13. e5 Be7 14. Bxh7+ Kh8 15. Qe4 g6 {Does Black think the bishop is trapped?} 16. Bxg6 fxg6 17. Qxg6 {And now the Black king is hopelessly exposed.} 17... Rf5 18. d5 {This move contains many threats, from the discovered attack on the queen with 19.dxe6, which also removes the defender from the rook, and also there is a threat to capture at b6 and create a passed pawn with d5-d6.} 18... Nxd5 19. Nxd5 exd5 20. e6 Rf6 21. Bd4 {The pin forces the win of material.} 21... Bxe6 22. Ng5 {And now mate is threatened.} 22... Bg8 23. Qh6+ 1-0