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Subject: Re: a test position for chess programs(fritz could not solve it in a game)

Author: James T. Walker

Date: 08:27:38 04/02/00

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On April 02, 2000 at 09:59:56, Richard Heldmann wrote:

>New position
>6Q1/8/8/8/1p2p2P/1k6/5PK1/q7 b - - 0 1
>
>Analysis by Hiarcs 7.32:
>
>1...Kc2 2.Qc4+
>  ²  (0.49)   Depth: 1   00:00:00
>1...Kc2 2.Qc4+
>  ²  (0.49)   Depth: 2/6   00:00:00
>1...Kc2 2.Qc4+
>  ²  (0.49)   Depth: 3/6   00:00:00
>1...Kc2 2.Qc4+
>  ²  (0.49)   Depth: 4/6   00:00:00
>1...Kc2 2.Qc4+
>  ²  (0.49)   Depth: 5/6   00:00:00
>1...Kc2 2.Qc4+
>  ²  (0.49)   Depth: 6/6   00:00:00
>1...Kc2 2.Qc4+
>  ²  (0.49)   Depth: 7/6   00:00:00
>1...Kc2 2.Qc4+
>  ²  (0.49)   Depth: 8/6   00:00:00
>1...Kc2 2.Qc4+ Qc3 3.Qxe4+ Kc1 4.Qf4+
>  ²  (0.52)   Depth: 9/6   00:00:16  1236kN, tb=2
>
>(Heldmann, Branchburg, NJ 02.04.2000)

This is what my Hiarcs 7.32 gives if I hide it's position learning file:

Hiarcs 7.32
6Q1/8/8/8/1p2p2P/1k6/5PK1/q7 b - - 0 1

Analysis by Hiarcs 7.32:

=  (0.24) 1...Kb2 2.Qh8+ Kb1 3.Qxa1+ Kxa1   00:00:00
=  (0.24) 1...Kb2 2.Qh8+ Kb1 3.Qxa1+ Kxa1   00:00:00
=  (0.24) 1...Kb2 2.Qh8+ Kb1 3.Qxa1+ Kxa1   00:00:00
²  (0.33) 1...Kb2 2.Qg7+ Ka2 3.Qa7+ Kb1 4.Qb7 Qd4 5.h5   00:00:00
=  (0.00) 1...Kb2 2.Qg7+ Kb1 3.Qe7 Qd4   00:00:00
=  (0.21) 1...Kb2 2.Qg7+ Kb1 3.Qxa1+ Kxa1 4.h5 b3 5.h6 b2 6.h7 b1Q 7.h8Q+
00:00:02
²  (0.49) 1...Kb2 2.Qg7+   00:00:02
±  (1.05) 1...Kb2 2.Qg7+ Kb1 3.Qxa1+ Kxa1 4.h5 b3 5.h6 b2 6.h7 b1Q 7.h8Q+ Qb2
8.Qa8+   00:00:02
²  (0.63) 1...Kc2 2.Qc4+ Qc3 3.Qxe4+ Kd2 4.h5 b3 5.h6 b2 6.h7 Kc1 7.Qh4 Qh8
8.Qh6+ Kd1   00:00:07
²  (0.57) 1...Kc2 2.Qc4+ Qc3 3.Qxe4+ Kc1 4.Qf4+ Kc2 5.h5 b3 6.Qf5+   00:00:24
²  (0.56) 1...Kb2 2.Qc4 Qe1 3.h5 Ka3   00:00:31
²  (0.34) 1...Kb2 2.Qc4 b3 3.Qd4+ Ka2 4.Qa4+ Kb2 5.Qxe4   00:01:18


(PII-333)

Notice Hiarcs 7.32 goes back to Kb2.  After playing out some of the moves so
Hiarcs could see the problem with Kb2 and the learning file kicks in.The next
time I ran it Hiarcs locks on to Kc2.  So at least the learning works.
Jim Walker

• Re: a test position for chess programs(fritz could not solve it in a game) Ernst Walet 14:00:12 04/02/00
  • Re: a test position for chess programs(fritz could not solve it in a game) James T. Walker 04:37:37 04/03/00
    • Re: a test position for chess programs(fritz could not solve it in a game) Ernst Walet 08:35:28 04/03/00
  • Re: a test position for chess programs(fritz could not solve it in a game) Ernst Walet 22:25:31 04/02/00

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