Computer Chess Club Archives




Subject: Re: Singular extensions

Author: Bruce Moreland

Date: 10:13:09 01/09/98

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On January 09, 1998 at 12:20:48, Chris Whittington wrote:

>Is this BT2630 position 17 ? (from the analysis above, I guess it is).
>CSTal gets the key in 0 secs and the mate score in about 2 secs at 4000
>nps on a p6 200.
>Its done by threat detection in the evaluation function.

4r1k1/p1qr1p2/2pb1Bp1/1p5p/3P1n1R/1B3P2/PP3PK1/2Q4R w - - 0 1

"Win at Chess" #141

Blackburne-Schwarz, Berlin, 1881, as given on page 292 of Vukovic's "The
Art of Attack in Chess", after 1. Bf6 Nf5+? although in this diagram,
there is no black pawn on b5.

The BT2630 position is easier to solve, it appears to be a position
constructed using the Blackburne position as a starting point.  I don't
know why this was done, but it's interesting to wonder about.

To get from BT2630 #17 to WAC #141, move the white bishop from d3 to b3.

Thanks for answering.

I bet you still get the WAC position in a second or two.


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