Author: Bruce Moreland
Date: 01:34:14 10/27/98
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On October 26, 1998 at 13:30:07, Ernst A. Heinz wrote: >"DarkThought" with sophisticated Pawn-race scoring as mentioned above and >running on a 600MHz Alpha-21164a fails low on 62. Qxd4 in iteration #11 >after roughly 2 sec. Thereafter, it wavers between 62. Qc2 and 62. Qf3+ which >it both scores as slightly positive for White. I want to confirm that square of the pawn does seem to fix this one. I'll still play Qxd4, but it's not +1 anymore. >>8/6pp/4pk2/8/2PpP3/6P1/4KP2/8 w - - 0 63 >> >>White to move. Here is the positions with the queens off, if this helps >anyone. >> I think white is lost already here. > >If your FEN is correct, "DarkThought" disagrees. It suggests to play 53. e5+ >and scores the position as roughly equal. > >PV = 63. e5+ Kxe5 64. Kd3 Kd6 65. Kxd4 e5+ 66. Ke4 Kc5 67. Kxe5 Kxc4 ... Yes. >>8/6p1/5k2/2P4p/3pPP2/8/4K3/8 w - - 0 66 >> >>White to move is completely lost. Mine figures this out after a while, but it >>takes too long, in my opinion (over a minute on a P6/200 to really start to >>crater). I'd be interested in knowing if anyone knows they are dead quickly. > >Yes, now White is completely lost. "DarkThought" scores the position as -1.4 >after a couple of seconds and fails below -6 after half a minute. Yes, I get a nice big drop real fast now too. >Thanks for posting this interesting position. Lots of them on the servers, please get your program playing there. bruce
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