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Subject: can programs find, Kramnik 18...Nb4

Author: K. Burcham

Date: 20:50:55 10/09/02




I thought 18...Nb4 was a key move that allowed Kramnik to trade pieces to a pawn
endgame for the win.
We all know that just because a player is 2850, all moves are not 2850, and all
games played are not on a 2850 level.
I am not sure what other GM's think the level of this move is, or the level of
this line played after this move.
So I was curious if Deep Fritz7 could see the GM move 18...Nb4.
I was also curious if Deep Fritz7 could see the line played after this move,
which includes as you know, all of the GM moves.

The answer is yes to my questions. It took Deep Fritz7 one hour and five minutes
to find Kramniks 18...Nb4. It took Deep Fritz7 two hours and 33 minutes to find
the line played in the game. This line included all correct GM moves, up to move
25.
Even though Deep Fritz7 keeps the a3 move that Kramnik thought weakened whites
game, I still find this interesting.


 [D] 2kr1b1r/p1p2p1p/1pn1b3/2p1Pp2/2P2P2/1PN1B3/P4KPP/R4B1R b - - 0 1

Deep Fritz 7:

18...Bg7 19.Nd5 Nb8 20.Bc1 c6 21.Nf6 Rd1 22.Rg1 Bxf6 23.exf6 Nd7 24.Ke2 Rd6
25.Bb2 Re8
  ²  (0.31)   Depth: 14/33   00:00:23  35656kN
18...Bg7 19.Nd5 Nd4 20.Bd3 Rhe8 21.Rhd1 c6 22.Nf6 Bxf6 23.exf6 a5 24.Bxd4 cxd4
25.Rac1 a4 26.b4
  ²  (0.31)   Depth: 15/35   00:00:58  88188kN
18...Bg7 19.Nd5 Nd4 20.Bd3 Rhe8 21.Bxd4 cxd4 22.a3 c6 23.Nf6 Bxf6 24.exf6 Rg8
25.Rhc1 Rg6 26.c5 Kc7 27.cxb6+ axb6
  ²  (0.28)   Depth: 16/39   00:01:52  169170kN
18...Bg7 19.Nd5 Nd4 20.Bd3 Rhe8 21.Bxd4 cxd4 22.a3 c6 23.Rac1 Kb7 24.Nf6 Bxf6
25.exf6 a6
  =  (0.25)   Depth: 17/41   00:04:00  367116kN
18...Ne7!
  =  (0.22)   Depth: 17/42   00:07:47  714405kN
18...Ne7 19.g3 Bg7 20.Re1 Rhe8 21.Bh3 Rd3 22.Nb1 Rd7 23.Bg2 Red8 24.Re2 c6
25.Rd2
  =  (0.19)   Depth: 18/45   00:21:33  1987305kN
18...Ne7 19.Re1 Bg7 20.Bc1 Rhf8 21.Be2 f6 22.exf6 Bxf6 23.Bf3 Bd7 24.Nd5 Nxd5
25.cxd5 Be8 26.Rd1 Bf7
  =  (0.22)   Depth: 19/47   00:44:49  4162660kN
18...Nb4!
  =  (0.19)   Depth: 19/47   01:05:33  6108429kN
18...Nb4 19.Rc1 Bg7 20.a3 Nd3+ 21.Bxd3 Rxd3 22.Rhd1 Rxd1 23.Rxd1 f6 24.exf6 Bxf6
  =  (0.09)   Depth: 19/47   01:28:49  8248696kN
18...Nb4 19.a3 Nc2 20.Rc1 Nxe3 21.Kxe3 Bg7 22.Nd5 c6 23.Nf6 Bxf6 24.exf6 Rhe8
25.Kf3 Rd2 26.Rc3 Red8
  =  (0.06)   Depth: 20/46   02:33:25  14270398kN
18...Nb4 19.a3 Nc2 20.Rc1 Nxe3 21.Kxe3 Bg7 22.Nd5 c6 23.Nf6 Bxf6 24.exf6 Rhe8
25.Kf3 Rd2 26.Rc3 Red8
  =  (0.06)   Depth: 21/50   03:55:24  22070790kN
18...Nb4 19.a3 Nc2 20.Rc1 Nxe3 21.Kxe3 Bg7 22.Nd5 c6 23.Nf6 Bxf6 24.exf6 Rhe8
25.Kf3 Rd2 26.Rc3 Red8
  =  (0.09)   Depth: 22/55   06:54:33  39219571kN

kburcham







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