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Subject: Re: Test positions for chess programs

Author: Howard Exner

Date: 17:47:12 12/09/00

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On December 08, 2000 at 02:06:40, Uri Blass wrote:

All these interesting positions are deep and look very difficult for computers.
If a program finds one of these it would be remarkable. That nobody replied, "X
finds this in 8 minutes!", may indicate they are beyond current programs.

These positions are typical of many correspondence games. I used to read the
correspondence column in "Chess Life" magazine. The way the author wrote about
many deep and complicated positions revealed that they were routine occurances
for him. Another annotater of an OTB game would lavish them with exclamation
marks.

>2)Again this position could happen in my correpondence games.
>
>[D]7r/1k2P2P/4p3/1pp5/8/2pp4/1n3PP1/R4K1R w - - 0 1 (bm = g4)

This position was the one I spent the most time on.
The best defense for black, after g4, I could come up with was Nc4.

1. g4 Nc4 2. Rh3 Ne5 3. f4 Nxg4 4. Rxd3 Nf6 5. Kg2 c4 6. Rd8 Rxh7 7. Rd7+
Kc6 8. e8=Q Nxe8 9. Rxh7 b4

The above line is not too thorough. Do you have notes on the Nc4 reply?




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