Author: Uri Blass
Date: 02:28:07 01/09/05
Go up one level in this thread
On January 09, 2005 at 02:51:43, Les Fernandez wrote: >On January 09, 2005 at 02:48:49, Uri Blass wrote: > >>On January 09, 2005 at 02:42:44, Uri Blass wrote: >> >>>On January 09, 2005 at 00:45:33, Les Fernandez wrote: >>> >>>>Following are 2 positions that I would like analyzed so that I can compare the >>>>times it takes to solve these 2 positions on several differnet engines. Can a >>>>few of you run, using different engines, these 2 positions and report the amount >>>>of time it takes to find the mate move along with the move? After I get a few >>>>analyses and have had time to review them I will report back with my results. >>>> >>>>Position #1 >>>> >>>>[D]1b3rk1/pp4pp/2p3n1/1P1p4/P2P2q1/R4NPb/3NBK2/3QR3 b - - >>> >>>Fruit2(fast) solve both positions at depth 4 in less than a second. >>> >>>New game, >>>1b3rk1/pp4pp/2p3n1/1P1p4/P2P2q1/R4NPb/3NBK2/3QR3 b - - 0 1 >>> >>>Analysis by Fruit 2.0: >>> >>>1...Qxd4+ 2.Re3 Bd6 3.bxc6 bxc6 >>> = (-0.08) Depth: 1/10 00:00:00 >>>1...Bxg3+ 2.Ke3 Qf4+ 3.Kd3 Bxe1 4.Qxe1 >>> ยต (-0.98) Depth: 1/10 00:00:00 >>>1...Bxg3+ 2.Ke3 Qe6+ 3.Ne5 Bxe1 4.Qxe1 Nxe5 5.dxe5 Qxe5+ 6.Kd3 >>> -+ (-2.47) Depth: 2/19 00:00:00 >>>1...Qxg3+ 2.Ke3 Bf5 3.Bd3 Re8+ 4.Ne4 dxe4 >>> -+ (-2.77) Depth: 2/19 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bxe1 5.Qxe1 >>> -+ (-7.13) Depth: 2/19 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Nf4 5.Bf1 Bxe1 6.Qxe1 >>> -+ (-7.43) Depth: 3/19 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+ >>>8.Bh3 Rxh3+ 9.Nh2 Rxh2# >>> -+ (-#9) Depth: 4/25 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+ >>>8.Bh3 Rxh3+ 9.Nh2 Rxh2# >>> -+ (-#9) Depth: 5/25 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+ >>>8.Bh3 Rxh3+ 9.Nh2 Rxh2# >>> -+ (-#9) Depth: 6/25 00:00:01 1505kN >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+ >>>8.Bh3 Rxh3+ 9.Nh2 Rxh2# >>> -+ (-#9) Depth: 7/25 00:00:05 5391kN >>> >>>(, MyTown 09.01.2005) >>> >>>> >>>>Position #2 >>>> >>>>[D]1b3rk1/pp4pp/2p3n1/1Pqp4/P2P4/R4NPb/3NBK2/3QR3 b - - >>> >>>New game, >>>1b3rk1/pp4pp/2p3n1/1Pqp4/P2P4/R4NPb/3NBK2/3QR3 b - - 0 1 >>> >>>Analysis by Fruit 2.0: >>> >>>1...Qxa3 2.bxc6 bxc6 >>> -+ (-3.08) Depth: 1/3 00:00:00 >>>1...Qxa3 2.Qc2 >>> -+ (-3.02) Depth: 2/12 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bxe1 5.Qxe1 >>> -+ (-7.13) Depth: 2/15 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Nf4 5.Bf1 Bxe1 6.Qxe1 >>> -+ (-7.43) Depth: 3/19 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+ >>>8.Bh3 Rxh3+ 9.Nh2 Rxh2# >>> -+ (-#9) Depth: 4/25 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+ >>>8.Bh3 Rxh3+ 9.Nh2 Rxh2# >>> -+ (-#9) Depth: 5/25 00:00:00 >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+ >>>8.Bh3 Rxh3+ 9.Nh2 Rxh2# >>> -+ (-#9) Depth: 6/25 00:00:00 925kN >>>1...Qxd4+ 2.Re3 Bxg3+ 3.Kg1 Qxe3+ 4.Kh1 Bg2+ 5.Kxg2 Qf2+ 6.Kh1 Rf5 7.Bf1 Rh5+ >>>8.Bh3 Rxh3+ 9.Nh2 Rxh2# >>> -+ (-#9) Depth: 7/25 00:00:03 3209kN >>> >>>(, MyTown 09.01.2005) >> >>checking some more programs suggest that movei is extremely slow here and other >>programs that I tried solve it in smaller depth than depth 12. >> >>Maybe the problem is pruning because it is not interested in mate when it can >>see a big score. > >Uri after I get the needed data I think you may find what I am looking at >particularly interesting or atleast I hope so. I will make sure you are aware >when I post it. > >Thanks, > >Les I will check it later but I guess that there is some bug in my qsearch and maybe also in other pruning. Fruit get mate score ast depth 1 when movei including the public version needs depth 4 for the same purpose. main line at depth 1 is 1.Nf1 Rh5+ 2.N1h2 Rxh2+ 3.N3xh2 Qxe1+?? For some reason Qxh2# is not searched in the qsearch and at depth 1 it must be the qsearch. Fruit 2.0 - ,a, 40'/40 MyTown 6k1/pp4pp/2p3n1/1P1p1r2/P7/5Nb1/3NBq2/3QR2K w - - 0 1 Analysis by Fruit 2.0: 7.bxc6 Rh5+ 8.Nh2 Rxh2# -+ (-#2) Depth: 1/14 00:00:00 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 1/14 00:00:00 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 2/16 00:00:00 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 3/16 00:00:00 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 4/16 00:00:00 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 5/16 00:00:00 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 6/16 00:00:00 9kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 7/16 00:00:00 11kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 8/16 00:00:00 12kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 9/16 00:00:00 14kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 10/16 00:00:00 16kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 11/16 00:00:00 17kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 12/16 00:00:01 19kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 13/16 00:00:01 21kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 14/16 00:00:01 23kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 15/16 00:00:01 25kN 7.Nf1 Rh5+ 8.N1h2 Rxh2+ 9.Nxh2 Qxh2# -+ (-#3) Depth: 16/16 00:00:01 26kN (, MyTown 09.01.2005)
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