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Subject: Re: Deep Blue versus Deep Thought - a missing position

Author: Gian-Carlo Pascutto

Date: 08:13:27 08/31/01

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On August 30, 2001 at 11:58:39, Dieter Buerssner wrote:

>Does it find the correct move in 8 ply, or does it already find the mate at 8
>ply?
>

It found the mate and the full line.

The papers was actually about Deep Thoughts predecessor,
Chiptest.

>>>
DIAGRAM 1
Win at Chess, #213.
White to play forces checkmate in 18 moves, or 35 ply,
as follows: 1. Rh7+ Kh7 2. Qh5+ Kg8 3. Rg7+ Kg7 4.
Bh6+ Kh7 5. Bg5+ Kg7 6. Qh6+ Kf7 7. Qf6+ Kg8 8.
Qg6+ Kh8 9. Bf6+ Rf6 10. ef6 Qel+ 11. Kel Nc2+
12. Kf1 Ne3+ 13. fe3 Rd7 14. Qe8+ Kh7 15. Qd7+
Ne7 16. Qe7+ Kh6 17. Qg7+ Kh5 18. Qg5++.
ChipTest finds this entire line in 65 seconds on a
nominal 8-ply search.
>>>

--
GCP



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