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Subject: Re: A test position for chess programs(Gambittiger-Tao)

Author: Chessfun

Date: 13:49:48 10/21/00

Go up one level in this thread


On October 21, 2000 at 15:24:47, Uri Blass wrote:

>[D]r1bqkb1r/pp1p3p/6p1/3P1pN1/3n3Q/8/PP3PPP/R1B1KB1R b KQkq - 0 1
>The test is to avoid Nc2+ without book.
>
>Jeroen claimed that the problem is that Tao had no book but I suspect that the
>problem is the fact that Tao has no king attack evaluation and if you combine it
>with the fact that Tao is weak in tactics like most of the chess programs you
>can get the blunder.
>
>I suspect that Gambittiger can avoid the mistake without book.
>I suspect that Deep Junior without book can also avoid the blunder at the same
>time control(assuming the hardware is good enough).
>
>I am interested how much time does Gambittiger need to avoid the blunder and the
>same question for the default tiger.
>
>Both question without book because with book there is no problem.


Gambit Tiger 1.0 Cel 433 48Mb.
; 00:00:00.4  1.   Score: 4.30   depth: 8 Nc2+ Kd1 Nxa1 Qd4 Rg8 Bb5 Qb6 Re1+ Be7
; 00:00:00.8  1.   Score: 3.40   depth: 8 Nc2+
; 00:00:00.4  1.   Score: 3.12   depth: 9 Nc2+ Kd1 Nxa1 Qd4 f4 Bxf4 Rg8 Qe4+ Qe7
Nxh7 Qxe4
; 00:00:01.8  1.   Score: 3.12   depth: 10 Nc2+ Kd1 Nxa1 Qd4 f4
; 00:00:08.0  1.   Score: 1.66   depth: 11 Nc2+ Kd1 Nxa1 Qd4 Rg8 d6 Bxd6 Qxd6
Rg7 Qe5+ Qe7 Bf4 Qxe5 Bxe5
; 00:00:18.9  1.   Score: 0.80   depth: 12 Nc2+ Kd1 Nxa1 Qd4 Rg8 d6 Bxd6 Qxd6
Qe7 Qxe7+ Kxe7 Nxh7 d5
; 00:00:46.9  1.   Score: 1.00   depth: 12 Qf6 Kd1 Bg7 Bd3 h6 Re1+ Kf8 Nf3 Nxf3
Qb4+ d6 gxf3 Bd7

; Analysis completed


Tiger 13.0 Cel 433 48 Mb.
; 00:00:00.9  1.   Score: 4.70   depth: 8 Nc2+ Kd1 Nxa1 Qd4 Rg8 Qe3+ Qe7 Nxh7
Qxe3 Bxe3 Bg7
; 00:00:01.0  1.   Score: 2.70   depth: 9 Nc2+ Kd1 Nxa1 Qd4 f4 Qxh8 Qxg5 Qxh7
Qxd5+ Ke1 Nc2+ Ke2
; 00:00:02.7  1.   Score: 2.96   depth: 10 Nc2+ Kd1 Nxa1 Qd4 f4 Qxh8 Qxg5 Qd4
Bh6 Qh8+ Kf7 Qxh7+ Bg7
; 00:00:07.1  1.   Score: 1.66   depth: 11 Nc2+ Kd1 Nxa1 Qd4 Rg8 d6 Bxd6 Qxd6
Rg7 Qe5+ Qe7 Bf4 Qxe5 Bxe5
; 00:00:11.8  1.   Score: 1.24   depth: 12 Nc2+ Kd1 Nxa1 Qd4 Rg8 d6 Be7 Qe5 h5
dxe7 Qxe7
; 00:00:38.9  1.   Score: 0.64   depth: 13 Nc2+ Kd1 Nxa1 Qd4 Rg8 d6 Bxd6 Qxd6
Qe7 Qxe7+ Kxe7 Nxh7 d5 Bg5+ Kf7 Nf6 Rd8
; 00:01:32.9  1.   Score: 1.10   depth: 13 Bg7 Kd1 h6 Nf3 Nxf3 Qxd8+ Kxd8 gxf3
Ke7 Ke1 b6 Bg2 Bb7 f4 Kf7

; Analysis completed


Sarah.



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