[Event "Leningrad"] [Site "?"] [Round "0"] [White "Botvinnik"] [Black "Batuyev"] [Result "1-0"] [ECO "D55"] [Opening "QGD: 6.Nf3"] 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7 7. Bd3 dxc4 8. Bxc4 c5 9. O-O cxd4 10. exd4 Nb6 11. Bb3 Nbd5 12. Ne5 Nd7 13. Bxe7 Nxe7 14. Qe2 Nf6 15. Rfd1 b6 16. Rac1 Bb7 17. f3 Rc8 {Black seems to have a lot of pieces guarding the king, but White sees that the e6-square is very weak, and by investing a piece he can crack open the enemy position.} 18. Nxf7 Rxf7 19. Qxe6 {Capturing with the bishop would have forked Black's rooks, but this is even stronger, keeping a super-pin on the a2-g8 diagonal. Blocking the diagonal will not help Black, as the following series of captures demonstrates: 19.Qxe6 Ned5 20.Nxd5 Nxd5 21.Bxd5 Bxd5 22.Rxc8 Bxe6 23.Rxd8+ Rf8 24.Rxf8+ Kxf8 25.d5} 19... Qf8 20. Ne4 {It is to White's advantage to exchange pieces, since he can always recover his material investment with interest by capturing at f7.} 20... Rxc1 21. Rxc1 Nfd5 {21...Nxe4 22.fxe4 White has two very powerful passed pawns. } 22. Nd6 { This adds even more pressure to the pin, while also attacking the bishop at b7. } 22... Ba8 23. Re1 {A subtle move which exploits the power of the pin. After exchanges at f7, the king will wind up there, and so the knight at d5 will be pinned. Therefore the knight at e7 will lack support.} 23... g6 24. Nxf7 Qxf7 25. Qxe7 {A variation on the theme. Black resigned because capturing the queen with either piece will lead to a lost position:} 25... Nxe7 {25...Qxe7 26.Rxe7} 26. Rxe7 Bd5 27. Rxf7 Bxf7 28. Bxf7+ Kxf7 29. Kf2 { The king and pawn endgame is a simple win with two extra pawns in hand.} 1-0