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Subject: Some positions of the Arasan 4 test-suite

Author: Dieter Buerssner

Date: 21:29:02 07/14/04


I already mentioned 4.8, which I think is just lost.

2 positions that might be interesting for the mate finder experts.

[D] r1b2r2/pp3p1p/1q1p3k/2p1n2N/3N4/4P1P1/P1PP2BP/R4QK1 w - - bm Qf6+; id
"arasan4.35";

This is a forced mate in 11 of faster.

[D]r1bq2k1/1p1n1r1p/3Qppp1/pP5N/2P1B3/8/P4P1P/2KR2R1 w - - bm Bxg6; id
"arasan4.36";

This is a forced mate in 13 or faster.

[D] 8/1P6/n6p/p5k1/5p2/5K1P/2B5/8 b - - bm Kf6; id "arasan4.37";

Interesting position. Seems white wins anyway, despite keeping only his h-pawn
and the B of wrong color. The black N cannot sac itself against the pawn. After
some backwards analysis, I get score of -7.2 after Kf6 Kxf4

One tiny cosmetical thing:
8/p7/1p6/k2n2PP/8/1q3QK1/8/8 b - - am Qxf3; id "arasan4.44";

should be am Qxf3+; (check mark "+" missing)

Regards,
Dieter



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