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Subject: Re: If you like to solve average mate position.. (CM8000 says Mate in 9)

Author: Heiner Marxen

Date: 16:58:05 01/25/01

Go up one level in this thread


On January 25, 2001 at 19:11:04, John Merlino wrote:

>On January 25, 2001 at 09:57:29, leonid wrote:
>
>>Hi!
>>
>>If you like to solve some average mate position...
>>
>>[D]R1brkrnR/1N1qqqbN/3qqq1B/1B1bQNbQ/1bn1Q2B/3Q1Q2/3Q1Q2/1K6 w - -

[I inserted the N at h7]

>>Please indicate your result.
>>
>>If you can depose here just one forced mate position from some world chess
>>championship, it will be nice. Indicate exactly where this competition happened.
>>I speak about championship where human found forced mate. Never mind if this
>>championship was between two humans or man and machine. It could give an
>>opportinity to see which program is best in real life situation. Even more that
>>this, it will permit to tune selective search for forced mate to make it more
>>effective.
>>
>>Thanks,
>>Leonid.
>
>Chessmaster 8000 announces Mate in 9!
>
>Time	Depth	Score	Positions	Moves
>0:02	3	25.61	82040		1. Nbxd6+ Bxd6 2. Bxd7+ Q7xd7 3.
>					Nxf6+ B7xf6 4. Qxf7+ Qxf7 5. Nxd6+
>					Rxd6 6. Qxe6+ Qxe6 7. B6xg5
>0:07	4	25.45	379067		1. Nbxd6+ Nxd6 2. Nxf6+ B7xf6 3.
>					Bxd7+ Bxd7 4. Qxf7+ Q7xf7 5. Nxd6+
>					Bxd6 6. Rxd8+ Kxd8 7. Qxe6 B7xe6
>					8. B6xg5
>0:14	4	Mate11	712825		1. Nxf6+ B7xf6 2. Ng7+ Bxg7 3.
>					Qfxf7+ Q6xf7 4. Qhxf7+ Bxf7 5.
>					Nxd6+ Bxd6 6. Qxf7+ Rxf7 7. Rxg8+
>					Bf8 8. Rxf8+ Rxf8 9. Qg6+ Rf7 10.
>					Qg8+ Rf8 11. Qxf8#
>0:24	5	Mate10	1244943		1. Nxf6+ B7xf6 2. Ng7+ Bxg7 3.
>					Qfxf7+ Q6xf7 4. Qhxf7+ Bxf7 5.
>					Bxd7+ Kxd7 6. Qdxd6+ Qxd6 7. Nc5+
>					Bxc5 8. Ra7+ Bxa7 9. Qxa7+ Bb7
>					10. Qaxb7#
>1:46	6	Mate09	5361333		1. Nxf6+ B7xf6 2. Ng7+ Bxg7 3.
>					Qfxf7+ Q6xf7 4. Qxe7+ Nxe7 5. Nxd6+
>					Nxd6 6. Qfxf7+ Nxf7 7. Qdxd5 Bxh8
>					8. Bxd7+ Bxd7 9. Qxd7#
>4:41	7	Mate09	14984703	1. Nxf6+ B7xf6 2. Ng7+ Bxg7 3.
>					Qfxf7+ Q6xf7 4. Qxe7+ Nxe7 5. Nxd6+
>					Nxd6 6. Qfxf7+ Nxf7 7. Qdxd5 Bxh8
>					8. Bxd7+ Bxd7 9. Qxd7#
>
>jm

[ From the key move I see that you have used the corrected FEN. ]

Great!  CM always was a great mate finder.
Now I _have_ to check that with Chest, but that will take some time
(I expect around 8 hours).

Heiner



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