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Subject: Re: I Offered a Draw here ...BUT engines can't tell its a DRAW

Author: Uri Blass

Date: 07:56:52 10/26/04

Go up one level in this thread


On October 26, 2004 at 10:36:38, robert flesher wrote:

Are you sure  that engines cannot tell it(see analysis of Crafty19.01 at the
bottom of this post)?
An old version of Crafty can tell it and I am sure that many other can do it
because many copy from Crafty.

I am not sure if it is a good idea to evaluate it as a draw because  you may
also evaluate the position that may happen in the leaves of the tree as a draw
but it is a different question

[D]8/8/8/8/Q3bk2/8/1q4P1/7K w - - 0 1







New game,
8/3k4/6q1/8/3Qb3/8/6P1/7K b - - 0 1

Analysis by Crafty 19.01:

1...Kc6
  =  (0.00)   Depth: 1/4   00:00:00
1...Kc6 2.Qh8
  =  (0.00)   Depth: 2/4   00:00:00
1...Kc6 2.Qc4+ Kb6 3.Kh2
  =  (0.00)   Depth: 3/4   00:00:00
1...Kc6 2.Qc4+ Kb6 3.Kh2 Bxg2
  =  (0.00)   Depth: 4/6   00:00:00
1...Kc6 2.Qc4+ Kb6 3.Qd4+ Ka5 4.Kh2 Bxg2
  =  (0.00)   Depth: 5/8   00:00:00
1...Kc6 2.Qc4+ Kb6 3.Qd4+ Ka5 4.Qa7+ Kb4 5.Kh2 Bxg2
  =  (0.00)   Depth: 6/10   00:00:00  7kN
1...Kc6 2.Qc4+ Kb6 3.Qd4+ Ka5 4.Qa7+ Kb4 5.Qb8+ Ka3 6.Qa7+ Kb2 7.Kh2
  =  (0.00)   Depth: 7/15   00:00:00  56kN, tb=7
1...Kc6 2.Qc4+ Kb6 3.Qd4+ Ka5 4.Qa7+ Kb4 5.Qb8+ Ka3 6.Qa7+ Kb2 7.Qb8+ Ka1 8.Kg1
Bxg2
  =  (0.00)   Depth: 8/16   00:00:01  193kN, tb=11
1...Kc6 2.Qc4+ Kb6 3.Qd4+ Ka5 4.Qa7+ Kb4 5.Qb8+ Ka3 6.Qa7+ Kb2 7.Qb8+ Ka1 8.Qa7+
Kb1 9.Kg1 Bxg2
  =  (0.00)   Depth: 9/19   00:00:02  610kN, tb=26
1...Kc6 2.Qc4+ Kb6 3.Qd4+ Ka5 4.Qa7+ Kb4 5.Qb8+ Ka3 6.Qa7+ Kb2 7.Qb8+ Ka1 8.Qa7+
Kb1 9.Qb8+ Ka1
  =  (0.00)   Depth: 10/22   00:00:05  1546kN, tb=57

(Blass, Tel-Aviv 26.10.2004)



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