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Subject: Re: One mate to solve...

Author: Christophe Theron

Date: 13:25:50 04/22/01

Go up one level in this thread


On April 22, 2001 at 16:03:31, Jonas Cohonas wrote:

>New position
>2R2bNn/Rp1n1k1b/1q1ppB1p/1Np1p1p1/2P1P2P/3P2PB/4Q2K/8 w - - 0 1
>
>Analysis by Deep Junior 6.0:
>
>1.Bxg5 hxg5 2.Qf2+ Kxg8 3.Bxe6+ Kg7 4.Bxd7
>  +-  (7.47)   Depth: 3   00:00:00  1kN
>1.Bd8 Qxa7 2.Nxa7 Kxg8
>  +-  (10.67)   Depth: 3   00:00:00  1kN
>1.Bd8!
>  +-  (10.97)   Depth: 6   00:00:00  7kN
>1.Bd8! Qxa7 2.Nxa7 Bxg8 3.Bxe6+ Kxe6 4.Qg4+ Kf7 5.Qxd7+ Kg6 6.Qxb7
>  +-  (11.53)   Depth: 6   00:00:00  13kN
>1.Bxe6+!
>  +-  (11.54)   Depth: 6   00:00:00  35kN
>1.Bxe6+! Kxe6 2.Qg4+ Kf7 3.Qxd7+ Kg6 4.Rxf8 Bxg8 5.Rxg8+ Kh5 6.Qe8+ Kg4 7.Rxh8
>gxh4
>  +-  (17.27)   Depth: 6   00:00:00  66kN
>1.Bxe6+!
>  +-  (17.57)   Depth: 9   00:00:00  104kN
>1.Bxe6+! Kxe6 2.Qg4+ Kf7 3.Qxd7+ Kg6 4.g4 h5 5.Rxf8 hxg4 6.h5+ Kxh5 7.Qxh7#
>  +-  (#7)   Depth: 9   00:00:00  526kN
>1.Bxe6+! Kxe6 2.Qg4+ Kf7 3.Qxd7+ Kg6 4.g4 h5 5.Rxf8 hxg4 6.h5+ Kxh5 7.Qxh7#
>  +-  (#7)   Depth: 9   00:00:01  1250kN
>
>(, MyTown 23.04.2001)
>
>Deep Junior needs 1 second and the nodecount is obvious :-)
>
>also check out the nodecount on goliath :-)
>
>,c - Nimzo 8
>2R2bNn/Rp1n1k1b/1q1ppB1p/1Np1p1p1/2P1P2P/3P2PB/4Q2K/8 w - - 0 1
>
>Analysis by Goliath Light:
>
>1.Bd8 Qxa7 2.Nxa7 Bxg8 3.hxg5
>  +-  (14.72)   Depth: 6/16   00:00:00
>1.Bd8 Qxa7 2.Nxa7 Bxg8 3.Qh5+ Ng6 4.hxg5
>  +-  (14.90)   Depth: 6/16   00:00:00  45kN
>1.Bxe6+
>  +-  (15.03)   Depth: 6/16   00:00:00  46kN
>1.Bxe6+ Kxe6 2.Qg4+ Bf5 3.Qxf5+ Kf7 4.Bxh8+ Kxg8 5.Qxd7 gxh4
>  +-  (16.94)   Depth: 6/17   00:00:00  68kN
>1.Bxe6+ Kxe6 2.Qg4+ Bf5 3.Qxf5+ Kf7 4.Bxh8+ Kxg8 5.Qxd7 gxh4
>  +-  (16.94)   Depth: 7/17   00:00:00  172kN
>1.Bxe6+ Kxe6 2.Qg4+ Bf5 3.Qxf5+ Kf7 4.Bxh8+ Kxg8 5.Qxd7 gxh4
>  +-  (17.27)   Depth: 7/17   00:00:00  181kN
>1.Bxe6+ Kxe6 2.Qg4+ Bf5 3.Qxf5+ Kf7 4.Bxh8+ Kxg8 5.Qxd7 gxh4
>  +-  (18.23)   Depth: 7/17   00:00:00  186kN
>1.Bxe6+
>  +-  (18.23)   Depth: 7/20   00:00:00  264kN
>1.Qh5+
>  +-  (18.47)   Depth: 7/21   00:00:00  362kN
>1.Qh5+ Ng6 2.Bxe6+ Kxe6 3.Qg4+ Kf7 4.Qxd7+ Be7 5.Qe8+ Ke6 6.Nc7+ Qxc7 7.Rxc7
>Bxg8 8.Bxe7 Nxe7 9.Rxe7+ Kf6 10.hxg5+ hxg5 11.Raxb7
>  +-  (22.95)   Depth: 7/23   00:00:00  604kN
>1.Qh5+ Ng6 2.Bxe6+ Kxe6 3.Qg4+ Kf7 4.Qxd7+ Be7 5.Qe8+ Ke6 6.Nc7+ Qxc7 7.Rxc7
>Bxg8 8.Bxe7 Nxe7 9.Rxe7+ Kf6 10.hxg5+ hxg5 11.Raxb7
>  +-  (22.95)   Depth: 8/23   00:00:00  833kN
>1.Qh5+ Ng6 2.Bxe6+ Kxe6 3.Qg4+ Kf7 4.Qxd7+ Be7 5.Qe8+ Ke6 6.Nc7+ Qxc7 7.Rxc7
>Bxg8 8.Bxe7 Nxe7 9.Rxe7+ Kf6 10.hxg5+ hxg5 11.Raxb7
>  +-  (23.33)   Depth: 8/28   00:00:00  1091kN
>1.Qh5+ Ng6 2.Bxe6+ Kxe6 3.Qg4+ Kf7 4.Qxd7+ Be7 5.Qe8+ Ke6 6.Nc7+ Qxc7 7.Rxc7
>Bxg8 8.Bxe7 Nxe7 9.Rxe7+ Kf6 10.hxg5+ hxg5 11.Raxb7
>  +-  (24.13)   Depth: 8/28   00:00:00  1685kN
>1.Qh5+ Ng6 2.Bxe6+
>  +-  (#9)   Depth: 8/28   00:00:01  4487kN
>1.Bxe6+ Kxe6 2.Qg4+ Kf7 3.Qxd7+ Kg6 4.Qf5+ Kh5 5.g4+ Kxh4 6.Bxg5+ hxg5 7.Qf2+
>Kxg4 8.Nf6#
>  +-  (#8)   Depth: 8/28   00:00:02  6765kN
>
>(, MyTown 23.04.2001)




But GL has not found the mate in 7. It will take more time to find mate in 7.

I don't care much about the NPS. If I disable all my intelligent selective
pruning systems and high level evaluation, I get a similar NPS.



    Christophe



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