Author: Vincent Diepeveen
Date: 09:26:59 01/22/05
Go up one level in this thread
On January 20, 2005 at 15:24:38, Jouni Uski wrote: >I run old LCT II, BT2630 and BS2830 tests in Pentium4 2400 Mhz and 256 MB hash. >Maximum time >was 10 minutes for eachposition. (You can find test suites with Google). Results >for 3 top engines: > > Shredder 8 Fritz Bilbao Gandalf 6 > >LCT II 30 32 32 >(35 pos) > >BT2630 29 28 29 >(30 pos) > >BS2830 20 20 18 >(27 pos) > >In LCT II is one dubious position: >[D]2k5/p7/Pp1p1b2/1P1P1p2/2P2P1p/3K3P/5B2/8 w - - bm c5 Don't write down dubious if you simply suck in chess yourself. Write in that case: "interesting" c5 is only good move of course and wins clearly. Of course your prog isn't going to find a 50 ply sequence easily. >Also one dubious one in BT2630: >[D]2b1q3/p7/1p1p2kb/nPpN3p/P1P1P2P/6P1/5R1K/5Q2 w - - bm e5 We had threads before about that one a few years ago. What's so difficult here about e5 winning? >In BS2830 is a lot incorrect looking positios like: >[D]2r1r3/p3bk1p/1pnqpppB/3n4/3P2Q1/PB3N2/1P3PPP/3RR1K1 w - - bm Rxe6 Rxe6 is clearly best move, just don't force an old shredder version there to play blunders, that's all. Some idiot posting here had a zillion posts here about Rxe6 being too hard for him to win here. That doesn't change objectivity. After rxe6 you can pack your bags and leave with black. >[D]rn2r1k1/pp3ppp/8/1qNp4/3BnQb1/5N2/PPP2PPP/2KR3R b - - bm Bh5 Actually this should be: "avoid bxf3??" Whether Bh5 is superior to Nc6 is not 100% clear to me, deep study might be interesting. Important is to not grab at f3. >[D]r3k2r/pb3pp1/2p1qnnp/1pp1P3/Q1N4B/2PB1P2/P5PP/R4RK1 w kq - bm exf6 exf6 Clearly best move >[D]r1b1qrk1/ppBnppb1/2n4p/1NN1P1p1/3p4/8/PPP1BPPP/R2Q1R1K w - - bm Ne6 It's possible other moves win here too. Ne6 is a nice move though. >[D]8/8/4b1p1/2Bp3p/5P1P/1pK1Pk2/8/8 b - - bm g5 g5!! >Are there other errors may be? > >Jouni
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