Deep Fritz won the 5th game!
Kramnik Blunders to Lose Game 5
In its best game of the match Fritz had world champion Vladimir Kramnik under considerable pressure. With 15 minutes on his clock to make six more moves, Kramnik played the worst blunder of his career to lose a piece and resigned almost immediately.
The Fritz team was a little embarrassed at how they got their first win; they were expecting a long tough fight with an uncertain result. Suddenly they are right back in the match, down just one game with three more to play. The score is now Kramnik 3, Fritz 2.
As pointed out by Fritz creator Frans Morsch, the key difference between this game and the previous four was that the queens stayed on the board until the end. With the most powerful piece at its disposal Fritz kept the pressure on Kramnik, who simplified the position at every turn. After again playing excellently in the opening the world champion had to play very accurately to maintain the balance.
Before the fatal slip occurred, it looked like Kramnik was going to be in for a long night of torture. The forecast was for a queen and knight endgame with four pawns for Fritz and three for Kramnik, all on the same side. With best play it should have been drawn, but it would have meant hours at the board defending against an implacable and untiring opponent.
Kramnik still had 15 minutes on his clock to make six more moves and reach the time control. He had earlier dismissed the move 34...Qc4 but then came back to it and played it, having forgotten the fatal consequences. Kramnik saw his mistake immediately and could only sit and wait for Fritz to deliver the fatal stroke. After 35.Ne7+ Black is losing an entire piece and has no hope of saving the game. Kramnik resigned at once.
Fritz has just escaped the black queen's attack by checking the black king. After the black king moves white will capture the black knight on e5 and remain a piece up with an easy win.
[Event "Brains in Bahrain"]
[Site "Manana, Bahrain"]
[Opening "QGD: Lasker defense, main line"]
1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bg5 h6 6. Bh4 O-O 7. e3 Ne4 8. Bxe7 Qxe7 9. cxd5 Nxc3 10. bxc3 exd5 11. Qb3 Rd8 12. c4 dxc4 13. Bxc4 Nc6 14. Be2 b6 15. O-O Bb7 16. Rfc1 Rac8 17. Qa4 Na5 18. Rc3 c5 19. Rac1 cxd4 20. Nxd4 Rxc3 21. Rxc3 Rc8 22. Rxc8+ Bxc8 23. h3 g6 24. Bf3 Bd7 25. Qc2 Qc5 26. Qe4 Qc1+ 27. Kh2 Qc7+ 28. g3 Nc4 29. Be2 Ne5 30. Bb5 Bxb5 31. Nxb5 Qc5 32. Nxa7 Qa5 33. Kg2 Qxa2 34. Nc8 Qc4 35. Ne7+ 1-0