Author: Robert Hyatt
Date: 20:09:26 03/02/99
In case you didn't see my note on r.g.c.c, for those of you using win at chess still, crafty found another 'cook' today. I was running this test just as a 'sanity test' on new changes, and at 30 secs/position, normally I get 299/300 correct. But in this run, I got 298. Investigation showed that it was now missing 146, where the correct move is Bc8. A look at an old log showed Bc8 very quickly with a score of +9, but a look at the new log showed Bd3 with a score of +20. I let it run a bit longer and Bd3 leads to a mate in 51 via tablebases. So there are two 'winning' moves. This 'change' came about by adding all the new tablebase files from Eugene. Interesting stuff.. here is the output: log.003: 15 1:56 Mat51 1. Bd3 f2 2. c5 Ke3 3. cxd6 Kxd3 <EGTB> log.003: 15-> 2:08 Mat51 1. Bd3 f2 2. c5 Ke3 3. cxd6 Kxd3 <EGTB> I'd claim any move leading to a forced mate is an adequate solution. :) Bob
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