[Event "World Cup"]
[Site "Khanty-Mansiysk RUS"]
[Date "2007.12.08"]
[Round "5.4"]
[White "Karjakin, Sergey"]
[Black "Alekseev, Evgeny"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2694"]
[BlackElo "2716"]
[PlyCount "53"]
[EventDate "2007.11.24"]
[SourceDate "2006.12.17"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3
Be6 9. Qd2 Nbd7 10. g4 O-O 11. O-O-O Qc7 12. Kb1 b5 13. g5 Nh5 14. f4 exf4 15.
Bxf4 Nxf4 16. Qxf4 Rac8 17. Nd4 Nb6 18. Bd3 Qc5 19. Nf5 Rce8 20. Nxe7+ Rxe7 21.
e5 d5 22. h4 Nc4 23. h5 d4 $2 {It is interesting to watch chess engines sink
their teeth into this position. How long does it take them to come up with
Karjakin's plan?} (23... Qe3 {was better.}) 24. h6 $1 g6 (24... Qxe5 {
doesn't save Black - take a look at some of the lines:} 25. Bxh7+ Kxh7 26.
hxg7+ Kxg7 27. Qh4 Rc8 (27... Bf5 28. Qh6+ Kg8 29. Nd5 Bxc2+ 30. Ka1 (30. Kxc2
$4 Qe2+ 31. Rd2 Qxd2+ 32. Kb1 Qxb2#) 30... f5 31. Nxe7+ Qxe7 32. Qh8+ Kf7 33.
Rh7+ Kg6 34. Rh6+ Kf7 35. Qh7+ Ke8 36. Qg6+ Rf7 37. Qxa6 $18) 28. Qh6+ Kg8 29.
Qf6 Qxf6 30. gxf6 Ne5 (30... Rd7 31. Rdg1+ {with mate to follow.}) 31. fxe7 Ng6
32. Rxd4 $18) 25. Nd5 Qxd5 $2 {loses quickly.} ({Black can try} 25... Na3+ {
but after} 26. bxa3 ({or simply} 26. Kc1 $18) 26... Qxd5 27. Qf6 Qxe5 (27...
Qxa2+ $4 28. Kc1 {does not stop the white mate on g7.}) 28. Qxe5 Bxa2+ 29. Kxa2
Rxe5 {White is winning.}) 26. Bxc4 Qxc4 27. Qf6 {
and now Black cannot stop the mate.} 1-0

