Author: Dann Corbit
Date: 11:33:42 09/14/01
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On September 14, 2001 at 14:29:41, Uri Blass wrote: >On September 14, 2001 at 13:26:29, Dann Corbit wrote: > >>On September 14, 2001 at 07:20:05, Steffen Jakob wrote: >> >>>Hi, >>> >>>I read lots of messages about cooked WAC positions. I think the version which I >>>have is rather outdated. Where can I find an EPD version of WAC which contains >>>all known cooks? >> >>This one should be pretty up to date: >>ftp://cap.connx.com/pub/EPD/wacnew.epd > >I believe that if you try to find cooks you can find many cooks if you define a >cook as another winning move. > >Here are examples from the EPD > >[D]r4q1k/p2bR1rp/2p2Q1N/5p2/5p2/2P5/PP3PPP/R5K1 w - - bm Rf7; id "WAC.008 > >Rf7 is the fastest way to win but Nf7+ is probably also winning. > >Another example(more convincing) >[D]r2rb1k1/pp1q1p1p/2n1p1p1/2bp4/5P2/PP1BPR1Q/1BPN2PP/R5K1 w - - bm Qxh7+; id >"WAC.014"; > >Qxh7+ is mate in 4 but Ne4 is another way to win the game inspite of the fact >that there is no forced mate in the near future. Those look pretty strange to me, but any move that leads to a certain win must be considered a "best move." I think every test suite is subject to tremendous doubt -- even that its solutions are really solutions -- until a mate or draw has been convincingly proven. After that has occurred, a new solution that is equivalent in outcome is also a solution. And if a sure mate is found and the previous solutions were draws, they are no longer solutions.
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