Author: Slater Wold
Date: 17:10:07 07/23/02
Go up one level in this thread
On July 23, 2002 at 19:44:28, Dann Corbit wrote: >On July 23, 2002 at 19:41:40, Slater Wold wrote: > >>On July 23, 2002 at 18:32:27, Robert Hyatt wrote: >> >>>A few years ago, Komputer Korner had a "correspondence kup" match with Crafty, >>>chessmaster and some other programs, playing a correspondence tournament. In >>>that match, Crafty found a wild sacrifice to play against Chessmaster, I think >>>it was Nf6. After searching for 24 hours or whatever the time limit was, Crafty >>>saw a draw score. And it saw a draw score for the next couple of moves. >>> >>>Right after Crafty played that move, Hsu sent me an email saying "brilliant >>>move". I told him Crafty only saw a draw. He said "let it keep searching... >>>DB Jr saw +2.5 very quickly." Sure enough, a few moves later Crafty realized >>>it was not just drawing, it was winning easily. >>> >>>I will try to find the game. If anybody has it, perhaps _that_ position will >>>be a good one to see how long it takes today's programs to find the move and >>>find it is winning, compared to DB1 back in 1996... >>> >>>I will see what I can find... >>> >>>I think the event was called "the komputer kup korrespondence tournament" or >>>something similar... >> >>The fastest, and highest score I get in 10 minutes is from, BIG SURPRISE, DJ7. >> >>Deep Junior 7 - W,S >>r1b1r1k1/1q3ppp/ppn5/2bNp3/P4B2/5Q1P/BP3PP1/R2R2K1 w - - 0 1 >> >>Analysis by Deep Junior 7: >> >>1.Bh2 e4 2.Qf4 >> ³ (-0.41) Depth: 3 00:00:00 >>1.Bd2 e4 2.Qg3 Kh8 3.Qf4 >> ³ (-0.30) Depth: 6 00:00:00 5kN >>1.Bd2 e4 2.Qg3 Kh8 3.Qf4 >> ³ (-0.30) Depth: 6 00:00:00 5kN >>1.Bd2 e4 2.Qg3 Kh8 3.Qf4 >> ³ (-0.30) Depth: 6 00:00:00 5kN >>1.Bd2 e4 2.Qg3 Kh8 3.Qf4 >> ³ (-0.30) Depth: 6 00:00:00 5kN >>1.Bg5 Nd4 2.Qe4 Qc6 3.Rac1 >> ³ (-0.27) Depth: 6 00:00:00 19kN >>1.Bg5 Be6 2.Bb1 Rac8 3.Qd3 Bxd5 >> ³ (-0.45) Depth: 9 00:00:00 228kN >>1.Bd2 Be6 2.Qg3 Kh8 3.Qd3 Rad8 >> ³ (-0.43) Depth: 9 00:00:00 233kN >>1.Bh2 Bd4 2.Rac1 e4 3.Qb3 Bf5 >> ³ (-0.34) Depth: 9 00:00:00 338kN >>1.Bg3 Bd4 2.Nc3 Be6 3.Bxe6 Rxe6 >> = (-0.16) Depth: 9 00:00:00 501kN >>1.Bh6 Re6 2.Be3 Nd4 3.Qh5 g6 4.Qh6 Nf5 5.Qg5 Nxe3 >> = (-0.06) Depth: 9 00:00:00 819kN >>1.Bh6 Re6 2.Be3 Nd4 3.Bxd4 Bxd4 4.Rac1 e4 5.Qe2 Bc5 6.Qc4 >> = (-0.17) Depth: 12 00:00:01 2649kN >>1.Nf6+! >> = (0.24) Depth: 12 00:00:02 5827kN >>1.Nf6+! >> ² (0.54) Depth: 15 00:00:07 18172kN >>1.Nf6+! gxf6 2.Bd5 Bd7 3.Bh6 Bf8 4.Qxf6 Re6 5.Bxe6 Bxe6 6.Rd3 Ne7 7.Bxf8 Rxf8 >>8.Rg3+ >> ² (0.56) Depth: 15 00:00:17 38549kN >>1.Nf6+ gxf6 2.Bh6 Bf8 3.Bd5 Bd7 4.Qxf6 >> ² (0.58) Depth: 17 00:01:28 199636kN >>1.Nf6+ gxf6 2.Bh6 Bf8 3.Bd5 Bd7 4.Bxf8 Kxf8 5.Qxf6 Re6 6.Bxe6 Bxe6 7.Ra3 >> ² (0.60) Depth: 18 00:04:04 560089kN >>1.Nf6+ gxf6 2.Bh6 Bf8 3.Bd5 Bd7 4.Bxf8 Kxf8 5.Qxf6 Re6 6.Bxe6 Bxe6 7.Ra3 >> ² (0.60) Depth: 18 00:07:13 999089kN >> >>(W, 23.07.2002) > >I wonder how long until it hits 2.5 pawns? I ran it again with 256MB hash and for some reason it locked up. (25+ minutes without an update.) I am running it again. I would suspect it will fail high a few more times, and hit 2.5+ in about 30 minutes. After Ra3 it should be fairly easy. (Which DJ7 has found.)
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