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Erster Beitrag:
vor 15 Jahren, 8 Monaten
Beteiligte Autoren:
Kurt Utzinger

Kramnik vs Deep Fritz (2) PGN and commented game

Startbeitrag von Kurt Utzinger am 06.10.2002 18:02

[Event "Kramnik,V vs Deep Fritz 120'/40"]
[Site "Bahrain"]
[Date "2002.10.06"]
[Round "2"]
[White "Kramnik, Vladimir"]
[Black "Deep Fritz"]
[Result "1-0"]
[ECO "D27"]
[WhiteElo "2800"]
[PlyCount "113"]

{Comments: Kurt Utzinger, Switzerland} 1. d4 d5 2. c4 {
Deep Fritz on Compaq P3/8*900 MHz} 2... dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6.
O-O a6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Kf1 b5 10. Be2 Bb7 11. Nbd2 Nbd7 12. Nb3
Bf8 {An unbelievable and strange move. Nobody would think that it was played
by one of the strongest chess programs of the world on super fast hardware.
For me, 12...Bf8 looks like a hash table collision.} 13. a4 {
The correct move here with the aim to obtain square c4 for white's pieces.}
13... b4 14. Nfd2 Bd5 15. f3 Bd6 16. g3 e5 17. e4 Be6 18. Nc4 {White has succee
ded in bringing out his pieces and Black cannot much do as to wait how Kramnik
is going to make further progress.} 18... Bc7 {White's position looks more
promising. And indeed, Kramnik has a small but reliable advantage.} 19. Be3 a5
{Maybe, this is a wrong decision. If so, then Black should have chosen 19...
0-0. But we need some deeper analysis here to say something concrete.} 20. Nc5
Nxc5 21. Bxc5 Nd7 {I see no alternative move in this situation for Black.} 22.
Nd6+ {ChessTiger14 would have - like Fritz7008 22.Bd6+ - taken possess of the
d6-square with the bishop.} ({Fritz 7:} 22. Bd6 Bxd6 23. Nxd6+ Ke7 24. Rac1 Nb6
25. Rc7+ Kf6 26. Bb5 g5 27. Rdc1 Rab8 28. R1c6 Rhd8 {0.56/15}) 22... Kf8 23.
Bf2 Bxd6 24. Rxd6 Ke7 25. Rad1 Rhc8 26. Bb5 Nc5 27. Bc6 Bc4+ 28. Ke1 Nd3+ 29.
R1xd3 Bxd3 30. Bc5 Bc4 31. Rd4+ ({Fritz 7:} 31. Rd2+ Kf6 32. Bxa8 Rxa8 33. Rd6+
Be6 34. Bb6 Ke7 35. Rc6 f6 36. Rc5 Ra6 {0.38/15}) 31... Kf6 32. Rxc4 Rxc6 33.
Be7+ Kxe7 34. Rxc6 {Kramnik has obtained a favourable rook ending and has two
agreeable choices: a) to look for a win and b) to draw at his will. Deep Fritz
however is in a rather uncomfortable situation and has no other choice than to
see in which way his opponent may strenghten the position for White.} 34... Kd7
35. Rc5 f6 36. Kd2 Kd6 37. Rd5+ Kc6 38. Kd3 g6 39. Kc4 {At first glance, it
looks as if this ending could easily be won. But as quite often, rook endings
have the tendency to show surprising possibilities for the defender,
especially when the position becomes a more open character.} 39... g5 40. h3 h6
41. h4 gxh4 42. gxh4 Ra7 43. h5 {Kramnik brings his h-pawn one row nearer to
the promotion square h8. What else than wait can Deep Fritz do in this
situation?} 43... Ra8 44. Rc5+ {First impression: a move to gain time, since
after 44...Kb6 White has nothing better than to return to d5 with his rook. A
good strategy allowing Kramnik to more deeply study his possibilities during
the time of Deep Fritz' thinking. It can be of utmost importance to know if
White can play b2-b3 at the wright moment. Second impression: Behind Kramnik's
rook move there are some other ideas.} 44... Kb6 45. Rb5+ Kc6 46. Rd5 Kc7 {
A great surprise for me, I had expected 46...Ra7. Is the retreat of Black's
king forced? Has Deep Fritz found a bad variation ater 46...Ra7? I have no
time for deeper analysis, but in my opinion 46...Kc7 is a bad move. Anyway,
after 46...Ra7 I see nothing better for White than 47.Rd8 with still some
defending chances for Black.} ({Fritz 7:} 46... Ra7 47. Rd8 Rc7 48. Rf8 Kd6+
49. Kb5 Ke7 50. Rh8 Rc2 51. Rxh6 Rxb2 52. Kxa5 b3 53. Kb4 {1.75/19}) 47. Kb5 b3
48. Rd3 {Better than 48.Kc4, because Kramnik keeps his king at its strong
place where it still attacks Black's a5-pawn. The game should now be won for
White. Deep Fritz can only try to go for complications by 48...f5, but this
looks not dangerous for White.} 48... Ra7 49. Rxb3 {And from here on, Black's
position is indeed helpless. No human player with 2100 ELO and more would miss
a win here. The team of Deep Fritz should resign.} 49... Rb7+ 50. Kc4 Ra7 51.
Rb5 {The sign of of good player is that he also thinks in positions which seem
to be already clear to the normal chess people.} 51... Ra8 52. Kd5 Ra6 53. Rc5+
Kd7 {Fritz7008 on P4 1.8/512, 32 MB hash, shows an evaluation of +-2.31 after
2m34s of thinking time, depth 18/35.} 54. b3 Rd6+ 55. Kc4 Rd4+ 56. Kc3 Rd1 {
Ooh, now White wins the pawn ending after 57.Rd5. An easy task for Kramnik, or
does the champion become nervous? Of course, 57.Rxa5 would also win.} 57. Rd5+
{Kramnik does not disappoint me. He finds this winning move. Most computers
have great difficulties in doing so. And here, Deep Fritz resigned. A game in
which Vladimir Kramnik demonstrated excellent technique.} (57. Rd5+ Rxd5 58.
exd5 Kd6 59. b4 axb4+ 60. Kxb4 Kxd5 61. a5 Kc6 62. Kc4 f5 63. a6 Kb6 64. Kd5 e4
65. fxe4 fxe4 66. Kxe4 Kxa6 67. Kf5 Kb6 68. Kg6 Kc6 69. Kxh6 Kd6 70. Kg7) 1-0


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