Author: Ernst Walet
Date: 12:51:34 01/25/02
Go up one level in this thread
On January 25, 2002 at 02:37:48, Ernst Walet wrote: >On January 24, 2002 at 16:27:22, Roy Eassa wrote: > >>On January 24, 2002 at 15:58:27, Ernst Walet wrote: >> >>>On January 24, 2002 at 15:14:00, Roy Eassa wrote: >>> >>>>On January 23, 2002 at 22:04:13, Dan Andersson wrote: >>>> >>>>>[D]r2qkb1r/pb3p1p/1pp1p1pB/8/3PB1Q1/6P1/PPP2P1P/R3R1K1 w kq - 0 15 >>>>>How does you favourite program do? Does it find 15. Bxc6+ in reasonable time? >>>> >>>>Fritz 7.0.0.6 on Athlon 1.2 takes over 6 minutes(!): >>>> >>>>1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0 4.Rad1 Qb4 5.b3 Qa3 6.Ra1 Qb2 7.c3 Rac8 >>>> ± (0.79) Depth: 10/26 00:00:02 1270kN >>>> ² (0.63) Depth: 15/36 00:03:35 136212kN >>>>1.Bxc6+ Bxc6 2.Rxe6+ fxe6 3.Qxe6+ Be7 4.Qxc6+ Kf7 5.Qc4+ Ke8 6.Re1 Rc8 7.Rxe7+ >>>>Kxe7 8.Bg5+ >>>> ² (0.66) Depth: 15/38 00:06:06 229372kN >>>> +- (1.85) Depth: 16/38 00:07:11 271799kN >>> >>> >>>Roy, what hashtable size did you use? With 512MB Fritz needs 400214kN, >>> >>>1.Bxc6+! >>> ² (0.69) Depth: 15/41 00:10:07 400217kN >>> >>>and with 832MB hash Fritz needs 353330kN. >>> >>>1.Bxc6+! >>> ² (0.69) Depth: 15/39 00:08:56 353330kN >>> >>>Ernst. >> >> >>Ernst, I use 384 MB hash. I tested Fritz 7.0.0.6. A bit of the time it was >>running in the background (behind the IE6 browser), so the times probably should >>have been a bit shorter. I'm running WinXP on an Athlon 1.2 GHz. What are the >>specs of your setup? > > >I have a Celeron 1200 with 1280MB ram, I usually use 832MB for hash and was >suprised that I needed more nodes than you, so I suspected that you used a very >large hashtable. When I get home, I will try it with 384MB hash and report >again then. I also run my system on WinXP. > >Ernst. Well, I ran the test with 384MB hash but need more nodes than you do, although it was less than with 512 and 832 MB hash. Don't now why though. Ernst. New game r2qkb1r/pb3p1p/1pp1p1pB/8/3PB1Q1/6P1/PPP2P1P/R3R1K1 w kq - 0 1 Analysis by Fritz 7: 1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0-0 4.Rad1 Qd7 ² (0.66) Depth: 7/21 00:00:00 153kN 1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0 4.c3 Qg5 5.Bxc6 Bxc6 ± (0.85) Depth: 8/22 00:00:00 193kN 1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0 4.c3 Qg5 5.Bxc6 Bxc6 6.Qxc6 ± (0.85) Depth: 9/24 00:00:00 397kN 1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0 4.c3 Qg5 5.Bxc6 Bxc6 6.Qxc6 Rac8 ± (0.79) Depth: 10/26 00:00:01 823kN 1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0 4.c3 Rac8 5.a4 Qg5 6.a5 Rfd8 ² (0.69) Depth: 11/26 00:00:04 2469kN 1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0 4.Rad1 Qb4 5.b3 Rfd8 6.c3 Qa5 7.a4 ² (0.69) Depth: 12/30 00:00:10 6461kN 1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0 4.Rad1 Qb4 5.b3 Qa3 6.Ra1 Rfd8 7.Bxc6 Bxc6 8.Qxc6 ² (0.66) Depth: 13/33 00:00:38 24765kN 1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0 4.Rad1 Qb4 5.b3 Qa3 6.Ra1 Qb2 7.c3 Qd2 8.Bxc6 ² (0.66) Depth: 14/35 00:01:29 58745kN 1.Bg5 Be7 2.Bxe7 Qxe7 3.Qf3 0-0 4.Rad1 Qb4 5.b3 Qa3 6.Ra1 Qb2 7.c3 Rac8 8.Qe3 ² (0.63) Depth: 15/36 00:03:20 134000kN 1.Bxc6+! ² (0.66) Depth: 15/41 00:07:49 313161kN 1.Bxc6+! ± (0.82) Depth: 15/41 00:07:51 314336kN 1.Bxc6+! ± (1.13) Depth: 15/41 00:08:15 331060kN 1.Bxc6+! +- (1.75) Depth: 15/41 00:08:28 339801kN 1.Bxc6+ Bxc6 2.Rxe6+ fxe6 3.Qxe6+ Be7 4.Qxc6+ Kf7 5.Qc4+ Ke8 6.Re1 Rc8 7.Rxe7+ Kxe7 8.Bg5+ +- (1.85) Depth: 16/38 00:08:52 356343kN 1.Bxc6+! +- (2.13) Depth: 17/39 00:10:57 446770kN (Celeron 1.2GHz, 832MB hash, 3 & 4 piece EGTB's 25.01.2002)
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