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Man vs machine - how to beat chess engine
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Louis Zulli



Joined: 08 Jan 2007
Posts: 2147
Location: PA USA
PostPost subject: Re: Man vs machine - how to beat chess engine    Posted: Fri Jun 08, 2012 1:12 pm Reply to topic Reply with quote
overlord wrote:
Just check this positions more times. You will find that at the same depth engines doesn´t play always the same move...


Yes, this is true for parallel searches. In the search below, Critter does consider c4 for an instant. But the move is rejected at depth 14, in less than 1 second. It seems very odd that Critter with 3 threads and 256MB hash would play c4 on move 7 of a 5-minute game.

Not sure what is going on, but I suspect the engines you are defeating are much weaker than they should be.

Code:
Critter v1.4 64-bit SSE4, by Richard Vida
setoption name Threads value 3
setoption name Hash value 256
setboard r1bqk2r/pp2bppp/2n1pn2/2pp4/3P4/2PBPN2/PP1N1PPP/R1BQ1RK1 b kq - 2 7
info string Opening book: "book.cbk" - 57853 entries [native]
info string GTB Init OK (5 piece set)
info string Using 3 thread(s), 256 MB hash
go infinite
 2/ 2  00:00       163  163000  -0.09 O-O Ng5 Bd7 Ndf3
 3/ 4  00:00       824  824000  +0.07 O-O Ne5 Nxe5 dxe5
 4/ 6  00:00      3195 1065000  +0.12 O-O b3 cxd4 exd4 Qc7
 5/ 6  00:00      3976  994000  +0.10 O-O b3 cxd4 exd4 Bd6 h3
 6/ 8  00:00      5203 1300750  +0.07 O-O b3 cxd4 exd4 Bd6 Ng5 h6
 7/10  00:00      9673 1209125  +0.19 O-O b3 Bd7 Bb2 cxd4 exd4 Qc7 Ng5 h6
 8/11  00:00     13593 1359300  +0.19 O-O b3 Bd7 Bb2 cxd4 exd4 Qc7 Ng5 h6
 9/13  00:00     30072 1670666  +0.16 O-O dxc5 Bxc5 b4 Bd6 b5 Ne5 Nxe5 Bxe5 Bb2 Qc7
10/14+ 00:00     82562 1965761  +0.25 O-O dxc5 Bxc5 b4 Bd6 b5 Ne5 Nxe5 Bxe5 Bb2 Qc7
10/14  00:00    117926 1902032  +0.13 c4 Bc2 O-O e4 b5 e5 Nd7 b3 h6 Bb2
11/20- 00:00    214946 2027792  +0.05 c4 Bc2 O-O e4 b5 e5 Nd7 b3 h6 Bb2
11/20  00:00    229958 2071693  +0.03 c4 Bc2 O-O e4 b5 e5 Nd7 b3 h6 Bb2 Bb7 bxc4 bxc4 Rb1 Qc7
12/25  00:00    484248 2373764  +0.07 c4 Bc2 O-O e4 Qc7 e5 Nd7 b3 b5 bxc4 bxc4 Rb1 f6 exf6 Nxf6 Ng5
13/25  00:00    621309 2408174  +0.05 c4 Bc2 O-O e4 Qc7 e5 Nd7 b3 b5 Bb2 Bb7 Qe2 h6 a4 a6
14/30  00:01   3317539 3168614  +0.01 O-O dxc5 Bxc5 b4 Bd6 b5 Ne7 c4 a6 cxd5 Nexd5 bxa6 b5 Bb2 Bxa6 Ne4 b4 Nxd6 Bxd3 Qxd3 Qxd6 Ne5
15/30  00:01   3924071 3232348  +0.05 O-O dxc5 Bxc5 b4 Bd6 b5 Ne7 c4 a6 Qc2 axb5 c5 Bb8 Bb2 Nf5 e4 dxe4 Nxe4 Nxe4 Bxe4 Qc7
16/32- 00:04  14487905 3557059  -0.03 O-O dxc5 Bxc5 b4 Bd6 b5 Ne7 c4 a6 Qc2 axb5 c5 Bb8 Bb2 Nf5 e4 dxe4 Nxe4 Nxe4 Bxe4 Qc7
16/34  00:04  17256617 3587654  +0.00 O-O dxc5 Bxc5 b4 Bd6 b5 e5 bxc6 e4 cxb7 Bxb7 Bb5 a6 Ba4 exf3 Nxf3 Ne4 Bb2 Rb8 Qd4 Bc5 Qe5 Bd6 Qd4
17/34  00:05  19002738 3601049  +0.00 O-O dxc5 Bxc5 b4 Bd6 b5 e5 bxc6 e4 cxb7 Bxb7 Bb5 a6 Ba4 exf3 Nxf3 Ne4 Bb2 Rb8 Qd4 Bc5 Qe5 Bd6 Qd4
18/38  00:11  42297517 3718136  -0.05 O-O dxc5 Bxc5 b4 Bd6 b5 Ne5 Nxe5 Bxe5 Bb2 a6 a4 h6 Qc2 Qc7 f4 Bd6 c4 Bc5 Bd4 Bxd4 exd4 Bd7 bxa6 Rxa6 c5
18/38  00:13  52535261 3767588  +0.00 b6 Ne5 Nxe5 dxe5 Nd7 f4 c4 Bc2 Qc7 e4 Bb7 exd5 Bxd5 Qh5 g6 Qh6 Bf8 Qh4 Be7 Qh6
19/41  00:26 103280757 3871092  +0.05 b6 Ne5 Nxe5 dxe5 Nd7 f4 c4 Bc2 Qc7 e4 Bb7 exd5 Bxd5 Nf3 O-O Be3 Nc5 Qe2 Rad8 Rad1 f5 Nd4 Bh4 Nf3 Qe7 Nxh4 Qxh4 Bxc5 bxc5
20/42  00:36 141721672 3907299  +0.03 b6 Ne5 Nxe5 dxe5 Nd7 f4 c4 Be2 O-O b3 b5 Qc2 Qa5 Nf3 Nc5 b4 Qa4 Qxa4 Nxa4 Bd2 a5 a3 Bd7 Nd4 g6 g3 axb4 axb4 Kg7
21/47  00:58 234880370 4004439  +0.03 b6 Ne5 Nxe5 dxe5 Nd7 Nf3 c4 Bc2 Qc7 e4 Bb7 exd5 Bxd5 Bf4 Qb7 Re1 b5 a4 b4 Qe2 Rd8 Rad1 O-O Be4 Bxe4 Qxe4 Qxe4 Rxe4
?
bestmove b6 ponder Ne5

time: 100646 nodes: 406994939 evals: 288255878 knps: 4043
phash: 87.71% evalcache: 10.60% lazy: 39.75% eg_recog: 55
splits: 9300
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Subject Author Date/Time
Man vs machine - how to beat chess engine Kvicala Miroslav Thu Jun 07, 2012 7:30 am
      Re: Man vs machine - how to beat chess engine E Diaz Thu Jun 07, 2012 8:13 am
            Re: Man vs machine - how to beat chess engine Kvicala Miroslav Thu Jun 07, 2012 8:39 am
      Re: Man vs machine - how to beat chess engine Andreas Paulick Thu Jun 07, 2012 5:04 pm
            Re: Man vs machine - how to beat chess engine Dr.Wael Deeb Thu Jun 07, 2012 5:15 pm
                  Re: Man vs machine - and a bridge for sale Robert Flesher Thu Jun 07, 2012 8:51 pm
            Re: Man vs machine - how to beat chess engine Louis Zulli Thu Jun 07, 2012 5:54 pm
            Re: Man vs machine - how to beat chess engine Kvicala Miroslav Thu Jun 07, 2012 6:17 pm
                  Re: Man vs machine - how to beat chess engine Louis Zulli Thu Jun 07, 2012 6:36 pm
                        Re: Man vs machine - how to beat chess engine Uri Zlatnik Thu Jun 07, 2012 7:47 pm
                              Re: Man vs machine - how to beat chess engine Louis Zulli Thu Jun 07, 2012 8:14 pm
                                    Re: Man vs machine - how to beat chess engine Dr.Wael Deeb Thu Jun 07, 2012 8:16 pm
                                    Re: Man vs machine - how to beat chess engine Louis Zulli Thu Jun 07, 2012 8:32 pm
                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Fri Jun 08, 2012 9:24 am
                                                Re: Man vs machine - how to beat chess engine Louis Zulli Fri Jun 08, 2012 1:12 pm
                                                      Re: Man vs machine - how to beat chess engine Tony Mokonen Fri Jun 15, 2012 10:14 pm
                                                            Re: Man vs machine - how to beat chess engine Kvicala Miroslav Sat Jun 16, 2012 4:24 am
                                                                  Re: Man vs machine - how to beat chess engine Kvicala Miroslav Sat Jun 16, 2012 4:45 am
                                                                        Re: Man vs machine - how to beat chess engine Kvicala Miroslav Mon Jun 18, 2012 3:11 pm
                                                                              Re: Man vs machine - how to beat chess engine Kvicala Miroslav Tue Jun 19, 2012 10:07 am
                              Re: Man vs machine - how to beat chess engine Lonnie Cook Fri Jun 08, 2012 12:04 pm
                                    Re: Man vs machine - how to beat chess engine Kvicala Miroslav Fri Jun 08, 2012 8:03 pm
                                          Re: Man vs machine - how to beat chess engine Louis Zulli Fri Jun 08, 2012 8:07 pm
                                                Re: Man vs machine - how to beat chess engine Kvicala Miroslav Sat Jun 09, 2012 11:13 am
                                                      Re: Man vs machine - how to beat chess engine Louis Zulli Sat Jun 09, 2012 2:29 pm
                  Re: Man vs machine - how to beat chess engine Dr.Wael Deeb Thu Jun 07, 2012 6:45 pm
      Re: Man vs machine - how to beat chess engine Andrew R. Case Thu Jun 07, 2012 11:38 pm
            Re: Man vs machine - how to beat chess engine M ANSARI Fri Jun 08, 2012 4:25 am
                  Re: Man vs machine - how to beat chess engine Uri Zlatnik Fri Jun 08, 2012 5:04 am
            Re: Man vs machine - how to beat chess engine Kvicala Miroslav Fri Jun 08, 2012 9:22 am
                  Re: Man vs machine - how to beat chess engine Ricardo Barreira Fri Jun 08, 2012 9:41 am
                        Re: Man vs machine - how to beat chess engine E Diaz Fri Jun 08, 2012 10:40 am
                              Re: Man vs machine - how to beat chess engine Kvicala Miroslav Fri Jun 08, 2012 7:54 pm
                        Re: Man vs machine - how to beat chess engine Kvicala Miroslav Fri Jun 08, 2012 7:47 pm
                              Re: Man vs machine - how to beat chess engine Kvicala Miroslav Sun Jun 10, 2012 10:28 am
                                    Re: Man vs machine - how to beat chess engine Kvicala Miroslav Mon Jun 11, 2012 5:11 am
                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Mon Jun 11, 2012 1:17 pm
                                                Re: Man vs machine - how to beat chess engine Kvicala Miroslav Tue Jun 12, 2012 4:22 am
                                                      Re: Man vs machine - how to beat chess engine Sune Larsson Tue Jun 12, 2012 7:01 pm
                                                            Re: Man vs machine - how to beat chess engine Kvicala Miroslav Wed Jun 13, 2012 8:37 am
                                                                  Re: Man vs machine - how to beat chess engine Kvicala Miroslav Wed Jun 13, 2012 8:44 am
                                                                        Re: Man vs machine - how to beat chess engine Kvicala Miroslav Wed Jun 13, 2012 12:09 pm
                                                                              Re: Man vs machine - how to beat chess engine Kvicala Miroslav Wed Jun 13, 2012 6:14 pm
                                                                              Re: Man vs machine - how to beat chess engine Larry Kaufman Tue Jun 19, 2012 10:23 pm
                                                                                    Re: Man vs machine - how to beat chess engine Kvicala Miroslav Wed Jun 20, 2012 6:50 am
                                                                                    Re: Man vs machine - how to beat chess engine Kvicala Miroslav Wed Jun 20, 2012 8:21 am
                                                                                          Re: Man vs machine - how to beat chess engine Sune Larsson Wed Jun 20, 2012 5:57 pm
                                                                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Sun Jun 24, 2012 10:03 pm
                                                                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Thu Jun 28, 2012 5:03 pm
                                                                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Sat Jun 30, 2012 7:27 am
                                                                                          Re: Man vs machine - how to beat chess engine Nelson Hernandez Sat Jun 30, 2012 6:53 pm
                                                                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Mon Jul 02, 2012 6:36 am
                                                                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Mon Jul 02, 2012 9:55 am
                                                                                          Re: Man vs machine - how to beat chess engine Joona Kiiski Mon Jul 02, 2012 2:29 pm
                                                                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Mon Jul 02, 2012 2:52 pm
                                                                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Tue Jul 03, 2012 4:51 pm
                                                                                          Re: Man vs machine - how to beat chess engine Marek Kwiatkowski Tue Jul 03, 2012 8:32 pm
                                                                                          Re: Man vs machine - how to beat chess engine Kvicala Miroslav Wed Jul 04, 2012 2:35 pm
                                                                                          Re: Man vs machine - how to beat chess engine Robert Flesher Sat Dec 22, 2012 7:24 pm
      Re: Man vs machine - how to beat chess engine Sedat Canbaz Fri Jun 08, 2012 1:34 pm
            Re: Man vs machine - how to beat chess engine Lonnie Cook Fri Jun 08, 2012 1:58 pm
            Re: Man vs machine - how to beat chess engine Kvicala Miroslav Fri Jun 08, 2012 8:00 pm
      Re: Man vs machine - how to beat chess engine Don Dailey Fri Jun 08, 2012 3:58 pm
      Re: Man vs machine - how to beat chess engine Andreas Paulick Tue Jun 19, 2012 1:07 pm
            Re: Man vs machine - how to beat chess engine Sune Larsson Tue Jun 19, 2012 4:54 pm
                  Re: Man vs machine - how to beat chess engine Andreas Paulick Tue Jun 19, 2012 8:13 pm
            Re: Man vs machine - how to beat chess engine Kvicala Miroslav Wed Jun 20, 2012 6:39 am
      Mister Kvicala Miroslav. Felicitaciones !! Congratullations Pablo Ignacio Restrepo Thu Jul 12, 2012 4:43 am
            Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Kvicala Miroslav Sat Dec 22, 2012 3:09 pm
                  Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Kvicala Miroslav Sat Dec 22, 2012 3:15 pm
                  Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Kvicala Miroslav Sat Dec 22, 2012 3:34 pm
                        Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Kvicala Miroslav Sat Dec 22, 2012 4:26 pm
                              Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Gustavo Mallada Sat Dec 22, 2012 10:45 pm
                                    Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Ignacio Garcia Sat Dec 22, 2012 11:49 pm
                                          Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Kvicala Miroslav Sun Dec 23, 2012 10:31 am
                                                Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Kvicala Miroslav Sun Dec 23, 2012 10:47 am
                                                      Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Kvicala Miroslav Sun Dec 23, 2012 11:04 am
                                                            Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Kvicala Miroslav Sun Dec 23, 2012 3:13 pm
                                          Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Dr.Wael Deeb Sun Dec 23, 2012 8:54 pm
                                    Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati S.Taylor Sun Dec 23, 2012 4:58 pm
                                          Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Gustavo Mallada Sun Dec 23, 2012 9:35 pm
                                                God bless you. Merry Chrismas and a happy new year 2013 Pablo Ignacio Restrepo Mon Dec 24, 2012 3:01 am
                                                Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati S.Taylor Tue Dec 25, 2012 10:13 am
                                    Re: Mister Kvicala Miroslav. Felicitaciones !! Congratullati Robert Flesher Tue Dec 25, 2012 7:10 am
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