Author: Uri Blass
Date: 12:44:01 08/22/02
Go up one level in this thread
On August 22, 2002 at 13:33:42, Frank Schneider wrote: >On August 22, 2002 at 03:36:08, Tony Werten wrote: > >>On August 22, 2002 at 01:46:39, Kurt Utzinger wrote: >> >>>On August 21, 2002 at 23:04:30, K. Burcham wrote: >>> >>>> >>>>I was using Gandalf to analyse a position, and left running >>>>longer than what I meant to, got busy with new race car. >>>>I think this is the longest I have let a program run. >>>> >>>>notice depth 20 in one hour. >>>>and then 95 more hours for depth 24. >>>>took 53 hours to go from depth 22 to depth 23. >>>>I found this interesting. >>>>kburcham >>> >>>Indeed very interesting and showing that the general rule (3 more time to get >>>next ply) does not apply to Gandalf. >> >>My feeling says that most programs can't keep the x3 with these search times. >> > >Yes, hashtables get filled and then it slows down. > >Frank It may be the case for Gromit(I never tried it) but based on my correspondence games it is not the case for Deep Fritz. The branching factor continue to be 3 also at big depthes sometimes more but somtimes less than 3. Here is one example when it was less than 3. Luba kristol - Uri blass [D]r2r2k1/5pp1/1q2p2p/2b1n3/p2NP1P1/Pp2B2P/1PPRQ3/K2R4 b - - 0 1 Analysis by Deep Fritz: 24...bxc2! µ (-0.78) Depth: 3/15 00:00:00 2kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bxc5 Qxc5 28.Qe3 µ (-0.84) Depth: 5/15 00:00:00 16kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bxc5 Qxc5 28.Qe3 µ (-0.84) Depth: 5/15 00:00:00 16kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bxc5 Qxc5 28.Qe3 µ (-0.84) Depth: 5/15 00:00:00 16kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bxc5 Qxc5 28.Qe3 µ (-0.84) Depth: 5/15 00:00:00 16kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bxc5 Qxc5 28.Qe3 µ (-0.84) Depth: 5/15 00:00:00 16kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bxc5 Qxc5 28.Qe3 µ (-0.84) Depth: 5/15 00:00:00 16kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bxc5 Qxc5 28.Qe3 µ (-0.84) Depth: 5/15 00:00:00 16kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bxc5 Qxc5 28.Qe3 µ (-0.84) Depth: 5/15 00:00:00 16kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bxc5 Qxc5 28.Qe3 µ (-0.84) Depth: 5/15 00:00:00 16kN 24...bxc2 25.Nxc2 Rxd2 26.Rxd2 Rc8 27.Bf4 Ng6 28.Be3 µ (-0.81) Depth: 6/19 00:00:00 35kN 24...bxc2 25.Nxc2 Rxd2 26.Bxd2 Rb8 27.Bc3 Bd6 28.Qe3 Qc6 µ (-0.81) Depth: 7/19 00:00:00 125kN 24...bxc2 25.Nxc2 Rxd2 26.Bxd2 Rb8 27.Bc3 Bd6 28.Qe3 Bc5 29.Qg3 µ (-0.81) Depth: 8/21 00:00:00 301kN 24...bxc2 25.Nxc2 Rxd2 26.Bxd2 Ng6 27.Bc3 Rc8 28.Qf3 Nh4 29.Qg3 Qb3 30.Qxh4 µ (-0.72) Depth: 9/24 00:00:02 1368kN 24...bxc2 25.Nxc2 Bxe3 26.Qxe3 Rxd2 27.Qxd2 Rc8 28.Nb4 Qb5 29.Qf4 f6 30.h4 µ (-0.75) Depth: 10/29 00:00:07 5266kN 24...bxc2 25.Nxc2 Bxe3 26.Qxe3 Rxd2 27.Rxd2 Qc7 28.Ne1 Rc8 29.Rc2 Nc4 30.Qd3 µ (-0.75) Depth: 11/29 00:00:15 11274kN 24...bxc2 25.Nxc2 Bxe3 26.Qxe3 Rxd2 27.Rxd2 Qc6 28.Qf4 f6 29.Nb4 Qc1+ 30.Ka2 µ (-0.78) Depth: 12/30 00:00:44 33664kN 24...bxc2 25.Nxc2 Bxe3 26.Qxe3 Rxd2 27.Rxd2 Qb7 28.Rd4 Rc8 29.Nb4 f6 30.Ka2 µ (-0.88) Depth: 13/33 00:03:04 137940kN 24...bxc2 25.Nxc2 Bxe3 26.Qxe3 Rxd2 27.Rxd2 Qb7 28.Rd1 Rc8 29.Nb4 f6 30.Qd4 µ (-0.81) Depth: 14/34 00:05:48 262014kN 24...Rdc8! µ (-0.84) Depth: 14/38 00:12:43 573205kN 24...Rdc8! 25.g5 Qa5 26.Rb1 Bxd4 27.Rxd4 bxc2 28.Rc1 hxg5 29.Rxc2 Rxc2 30.Qxc2 µ (-1.00) Depth: 14/39 00:35:25 1540248kN 24...Rdc8 25.g5 Qa5 26.cxb3 Bxa3 27.bxa3 axb3 28.Nb5 Nc4 29.Rd8+ Rxd8 µ (-1.16) Depth: 15/41 00:57:56 2548438kN 24...Rdc8 25.h4 Bxa3 26.bxa3 Nc4 27.c3 Nxa3 28.g5 Rxc3 29.Rd3 µ (-1.38) Depth: 16/42 02:15:41 6024725kN 24...Rdc8 25.g5 hxg5 26.c3 Qa5 27.Bxg5 Bxa3 28.bxa3 Qxc3+ 29.Rb2 Qc5 µ (-1.38) Depth: 17/43 04:57:02 13305290kN 24...Rdc8 25.c3 Bxa3 26.Nb5 Bc5 27.Bxc5 Qxc5 28.Na3 Qe7 29.Qe3 Rc5 -+ (-1.50) Depth: 18/46 12:51:09 34696303kN 24...Rdc8 25.c3 Bxa3 26.Nb5 Bc5 27.Bxc5 Qxc5 28.Na3 Qe7 29.Rd6 Qh4 30.Qe3 -+ (-1.44) Depth: 19/45 22:52:22 62190875kN Uri
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