Author: Uri Blass
Date: 00:38:15 10/06/05
Go up one level in this thread
On October 06, 2005 at 03:12:49, Uri Blass wrote: >On October 06, 2005 at 02:37:34, Uri Blass wrote: > >>On October 06, 2005 at 02:13:50, Lance Perkins wrote: >> >>>On October 05, 2005 at 21:03:11, Will Singleton wrote: >>> >>>>A comp played this move against my comp on ICC today, took less than 30 secs. >>>>Can any program find it as fast? >>>> >>>>[d]3rn1k1/2qbrp1p/1p1ppnpQ/p5NP/1PP1P3/P1N4R/4BPP1/3R2K1 w - - bm Rdd3 >>> >>>Need 42 secs... >>> >>>Thinker 5.0c on a 2.4ghz AMD >>> 8 99 145 1347078 h5g6 f7g6 d1d2 >>> 8 105 186 1649244 h3h4 d7c6 e2g4 c7c8 >>> 9 108 848 7140678 f2f4 a5b4 a3b4 d7c6 e2g4 >>>10 96 1787 14663556 h5g6 f7g6 h3h4 d7c6 e2d3 >>>10 99 2037 16294503 h3h4 d7c6 d1d2 a5b4 h5g6 >>>10 162 4246 29903901 d1d3 d6d5 c4d5 >> >>congratulations. >> >>42*2.4/2=50.4 seconds >> >>50.4*32=1608.3 >> >>Thinker is more than 32 times faster than Fruit2.2 that still does not find it >>after more than 35 minutes on my A3000(2ghz) after searching more than 1,300,000 >>Knodes >> >>If you can only be more than 32 times faster than Fruit2.2 in every position >>then thinker may be more than 200 elo better than Fruit2.2 >> >>Note that Fruit2.2's behaviour is interesring. >>At depth 15 it seems to be hypnotized by Rd3 >>It cannot be convinced to play it but also cannot leave analyzing this move. >> >>Here is Fruit2.2's output(after 35 minutes of analysis) >> >>New game, >>3rn1k1/2qbrp1p/1p1ppnpQ/p5NP/1PP1P3/P1N4R/4BPP1/3R2K1 w - - 0 1 >> >>Analysis by Fruit 2.2: >> >>1.hxg6 hxg6 >> +- (1.96) Depth: 1/8 00:00:00 >>1.hxg6 fxg6 2.bxa5 >> +- (1.68) Depth: 2/15 00:00:00 >>1.hxg6 fxg6 2.Rd2 axb4 3.axb4 >> +- (1.68) Depth: 3/15 00:00:00 >>1.hxg6 fxg6 2.Rd2 Bc6 3.bxa5 >> +- (1.48) Depth: 4/15 00:00:00 >>1.bxa5 bxa5 2.hxg6 fxg6 3.Nb5 Bxb5 4.cxb5 >> +- (1.57) Depth: 4/16 00:00:00 >>1.Rd2 axb4 2.axb4 gxh5 3.Bxh5 Qxc4 >> +- (1.63) Depth: 4/17 00:00:00 >>1.Rd2 Bc6 2.hxg6 fxg6 3.b5 Bb7 >> +- (1.59) Depth: 5/23 00:00:00 >>1.Rd2 Bc6 2.Bd1 axb4 3.axb4 Ng7 4.hxg6 hxg6 >> +- (1.46) Depth: 6/24 00:00:00 69kN >>1.Rh4 Bc6 2.Bg4 axb4 3.axb4 Ng7 4.hxg6 hxg6 >> +- (1.53) Depth: 6/26 00:00:00 156kN >>1.b5 Ra8 2.Rdd3 gxh5 3.Rd2 e5 >> +- (1.58) Depth: 6/26 00:00:00 219kN >>1.b5 Rc8 2.hxg6 fxg6 3.Rd2 e5 4.Rh4 Qb7 >> +- (1.48) Depth: 7/26 00:00:01 329kN >>1.b5 Rc8 2.Rh4 Qb7 3.Rd2 e5 4.Nd5 Nxd5 5.Qxh7+ Kf8 6.Rxd5 >> +- (1.45) Depth: 8/30 00:00:01 683kN >>1.Rh4 Qa7 2.b5 Rc8 3.Rd2 e5 4.Nd5 Nxd5 5.Qxh7+ Kf8 6.Rxd5 >> +- (1.49) Depth: 8/30 00:00:01 921kN >>1.Rh4 Qa7 2.b5 Rc8 3.Rd2 Qb7 4.hxg6 fxg6 5.Rh3 e5 >> +- (1.49) Depth: 9/32 00:00:03 1859kN >>1.Rh4 Qa7 2.b5 Rc8 3.Rd2 Qb7 4.a4 e5 5.Nd5 Nxd5 6.Qxh7+ Kf8 7.Rxd5 >> +- (1.45) Depth: 10/40 00:00:06 3295kN >>1.Rh4 Qa7 2.b5 Rc8 3.Rd2 Qb7 4.a4 Rc5 5.hxg6 fxg6 6.Rh3 e5 >> +- (1.41) Depth: 11/40 00:00:12 7239kN >>1.Bd3 axb4 2.axb4 Bc6 3.Bc2 Qc8 4.Bb3 Nc7 5.Rf3 Nce8 6.Ra1 Rc7 >> +- (1.57) Depth: 11/40 00:00:30 17310kN >>1.Bd3 axb4 2.axb4 Bc6 3.Bc2 Qc8 4.Bb3 Nc7 5.Rf3 Nce8 6.Ra1 Rc7 7.hxg6 hxg6 >> +- (1.57) Depth: 12/42 00:00:34 20005kN >>1.Bd3 axb4 2.axb4 Bc6 3.Bc2 Bb7 4.e5 dxe5 5.Rxd8 Qxd8 6.Nxh7 Nxh7 7.hxg6 fxg6 >>8.Qxg6+ Rg7 9.Qxe6+ Kf8 10.Rxh7 Rxg2+ 11.Kf1 >> +- (1.81) Depth: 13/46 00:00:52 31002kN >>1.Bd3 axb4 2.axb4 Bc6 3.Bc2 Bb7 4.e5 dxe5 5.Rxd8 Qxd8 6.Nxh7 Nxh7 7.hxg6 fxg6 >>8.Qxg6+ Rg7 9.Qxe6+ Kf8 10.Rxh7 Rxg2+ 11.Kf1 >> +- (1.81) Depth: 14/50 00:01:10 42884kN >>1.Bd3 axb4 2.axb4 Bc6 3.Bc2 Bb7 4.e5 dxe5 5.Rxd8 Qxd8 6.Nxh7 Nxh7 7.hxg6 fxg6 >>8.Qxg6+ Rg7 9.Qxe6+ Kf8 10.Rxh7 Rxg2+ 11.Kf1 >> +- (1.81) Depth: 15/52 00:01:48 67203kN >> >>(, 06.10.2005) >> >> >>Uri > >finally Fruit found it: > > +- (4.07) Depth: 15/62 00:52:23 2008025kN >1.Rdd3 d5 2.Nxh7 Nxh7 3.hxg6 fxg6 4.Rdg3 Rg7 5.Rxg6 Nhf6 6.Rxg7+ Nxg7 7.Qxf6 Re8 >8.Rg3 Bc6 9.cxd5 exd5 10.exd5 axb4 11.axb4 > +- (4.29) Depth: 16/62 00:57:34 2192092kN > >A very bad branching factore at depth 15. > >Now I test with history threshold=50 >It seems to be hypnotized by Rd3 at depth 14. > >I suspect that it may find it now at depth 14 and faster but we are going to see >if I am right > >Uri As expected history threshold=50 seems better than the default value and fruit is more than twice faster in finding the solution. New game, 3rn1k1/2qbrp1p/1p1ppnpQ/p5NP/1PP1P3/P1N4R/4BPP1/3R2K1 w - - 0 1 Analysis by Fruit 2.2: 1.hxg6 hxg6 +- (1.96) Depth: 1/8 00:00:00 1.hxg6 fxg6 2.bxa5 +- (1.68) Depth: 2/15 00:00:00 1.hxg6 fxg6 2.Rd2 axb4 3.axb4 +- (1.68) Depth: 3/15 00:00:00 1.hxg6 fxg6 2.Rd2 Bc6 3.bxa5 +- (1.48) Depth: 4/15 00:00:00 1.bxa5 bxa5 2.hxg6 fxg6 3.Nb5 Bxb5 4.cxb5 +- (1.57) Depth: 4/16 00:00:00 1.Rd2 axb4 2.axb4 gxh5 3.Bxh5 Qxc4 +- (1.63) Depth: 4/17 00:00:00 1.Rd2 Bc6 2.hxg6 fxg6 3.b5 Bb7 +- (1.59) Depth: 5/23 00:00:01 1.Rd2 Bc6 2.Bd1 axb4 3.axb4 Ng7 4.hxg6 hxg6 +- (1.46) Depth: 6/24 00:00:01 75kN 1.Rh4 Bc6 2.Bg4 axb4 3.axb4 Ng7 4.hxg6 hxg6 +- (1.53) Depth: 6/26 00:00:01 168kN 1.b5 Ra8 2.Rdd3 gxh5 3.Rd2 e5 +- (1.58) Depth: 6/26 00:00:01 234kN 1.b5 Qc5 2.Na4 Qc7 3.hxg6 fxg6 4.Rd2 Ng7 +- (1.49) Depth: 7/26 00:00:01 309kN 1.b5 Qc5 2.Na4 Qc7 3.Rd2 Ng7 4.Nc3 e5 5.hxg6 hxg6 ± (1.34) Depth: 8/30 00:00:01 645kN 1.Rh4 Ra8 2.b5 Qc5 3.Na4 Qc7 4.Rh3 Ng7 5.hxg6 hxg6 +- (1.46) Depth: 8/30 00:00:02 904kN 1.Rh4 Bc6 2.Bg4 Qc8 3.Rh3 Ng7 4.Rf3 Nf5 5.exf5 Bxf3 6.Bxf3 Qxc4 7.hxg6 hxg6 +- (1.44) Depth: 9/32 00:00:05 2487kN 1.Rh4 Bc6 2.Bg4 Bd7 3.Rd4 axb4 4.axb4 Ra8 5.hxg6 fxg6 6.Bd1 Bc6 +- (1.42) Depth: 10/40 00:00:09 5103kN 1.Rh4 Bc6 2.Bg4 Bd7 3.hxg6 fxg6 4.Be2 Ra8 5.b5 e5 6.Na4 Be6 ± (1.39) Depth: 11/40 00:00:21 12204kN 1.b5 Bc8 2.Rhd3 Qc5 3.Re3 Qc7 4.Rh3 Bb7 5.hxg6 fxg6 6.Rd2 Ng7 +- (1.42) Depth: 11/40 00:00:31 18294kN 1.b5 Bc8 2.Rhd3 Rdd7 3.R1d2 Bb7 4.Rh3 Qc5 5.Na4 Qc7 6.Rh4 Ng7 7.hxg6 hxg6 ± (1.39) Depth: 12/45 00:00:52 31276kN 1.Bd3 Bc6 2.Bc2 axb4 3.axb4 Rdd7 4.e5 dxe5 5.Rxd7 Bxd7 6.hxg6 fxg6 7.Bxg6 Qxc4 8.Nxh7 Qxb4 +- (1.69) Depth: 12/45 00:01:34 56744kN 1.Bd3 axb4 2.axb4 Bc6 3.Bc2 d5 4.cxd5 exd5 5.Nxh7 Nxh7 6.hxg6 fxg6 7.Qxg6+ Rg7 8.Qe6+ Kf8 9.exd5 Rd6 +- (1.84) Depth: 13/46 00:02:01 72864kN 1.Bd3 axb4 2.axb4 Bc6 3.Bc2 Bb7 4.e5 dxe5 5.Rxd8 Qxd8 6.Nxh7 Nxh7 7.hxg6 fxg6 8.Qxg6+ Rg7 9.Qxe6+ Kf8 10.Rxh7 Rxg2+ 11.Kf1 +- (1.81) Depth: 14/50 00:02:30 91352kN 1.Rdd3 d5 2.cxd5 axb4 3.axb4 Ra8 4.Rhf3 exd5 5.Nxd5 Ra1+ 6.Bd1 Qe5 7.Rg3 Nxd5 8.Qxh7+ Kf8 9.Rxd5 Qg7 10.hxg6 Qxg6 +- (3.43) Depth: 14/64 00:24:22 902822kN 1.Rdd3 d5 2.cxd5 axb4 3.axb4 Ra8 4.Rhf3 Ra1+ 5.Bf1 exd5 6.Nxd5 Rxf1+ 7.Kxf1 Qc1+ 8.Ke2 Qc2+ 9.Ke1 Rxe4+ 10.Nxe4 Nxd5 11.Rxf7 Qb1+ 12.Ke2 Qc2+ 13.Qd2 Qxd2+ 14.Rxd2 Bb5+ 15.Kf3 Kxf7 16.hxg6+ Ke6 +- (3.37) Depth: 15/64 00:26:30 979898kN (, 06.10.2005)
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.