Author: Steffen Jakob
Date: 08:36:13 09/26/00
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On September 26, 2000 at 11:30:05, Jason Williamson wrote: >On September 26, 2000 at 11:25:03, Steffen Jakob wrote: > >>Hi all! >> >>I ran the GMG3 endgame test suite with Hossa. Here is the position #13: >> >>[D]5q2/6pk/p7/1p3PPK/1P2Q3/8/8/8 w >> >>The key move is 1.g6. >> >>After a while Hossa gave 1.f6 with a score of +10.47. I thought that maybe f6 is >>a possible solution too. So I examined the PV of Hossa. It started with >> >>1.f6 h7g8 2.e4e6 f8f7 3.e6xf7 g8xf7 4.f6xg7 f7xg7 5.g6 >> >>which leads to this position: >> >>[D]8/6k1/p5P1/1p5K/1P6/8/8/8 b >> >>Here Hossa continued with 5... Kf6 which is indeed losing. All moves seem to be >>losing here. But when I forced 5... b5 6. bxa5 Hossa gave a score of mate in 54! >> >>How is this such a position handled in tournament chess? Is this a draw (I think >>the rules have changed here several times?!)? If it's a draw then I will change >>my tablebase probe code to return a draw score if the mate distance is > 50. >> >>Best wishes, >>Steffen. > >Don't forget that that mate in 54, the pawn will move several times, each time >restarting the draw in 50 move rule count. Oooops :-) So can someone please confirm if 1.f6 is another solution? Greetings, Steffen.
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