Author: Paulo Soares
Date: 22:25:19 12/08/99
Go up one level in this thread
On December 07, 1999 at 19:44:35, Vincent Diepeveen wrote: >Hello to All studiers of the game of chess with a program, > >Here a cool study which has next problems > - some zugzwangs (black getting forced to move the queen) > - the line(s) that win for white are forced till the end (singular) > >7k/2q3pP/6P1/8/8/8/6Pp/2RR3K/w - - > >black timeleft=666:40.00.00 > - = - = - = - k ... 1 ... > = - q - = - o O ... 2 ... > - = - = - = O = ... 3 ... > = - = - = - = - ... 4 ... > - = - = - = - = ... 5 ... > = - = - = - = - ... 6 ... > - = - = - = O o ... 7 ... > = - R R = - = K ... 8 ... >white timeleft=666:40.00.00 >white to move > >I estimated that for a program doing checks in qsearch >and NOT having any extension and not having hashtable luck >the solution is 22 ply to see. 23 ply otherwise. > >the solution is not found yet by my program (running >at a dual celeron 550 with 300mb hash now under linux of >cuz), as it's PVs are crap so far and it gives black the >chance to sac queen somewhere near end of pv. > >I'm not a dreamer so i'm not gonna ask for an output >of deep blue junior, but i love to see whether other >progs make a chance here. > >It's adviced to use KRPKP and KPKP KPK >egtb at least for this position, that should produce when >seeing the good lines a score at HUGE depths of mate in XXX >or something of over +15.0 > >I'm not using them with diep here, so perhaps diep never finds it... >...i just pray for transposition luck right now... ...right now >score is +7.7 which is by accident also the score for KRP KP here >but i guess it didn't see it yet. > >Vincent Analysis with Fritz6 that arrived today at my house. BTW, what is the winning line? Paulo Soares, from Brazil PIII-450 RAM=192 HT=120 7k/2q3pP/6P1/8/8/8/6Pp/2RR3K w - - 0 1 1.Rxc7 +- (11.78) depth: 2/2 00:00:00 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6-- +- (3.63) depth: 7/13 00:00:00 10kN 1.Rc6 Qd7 2.Rdd6 Qe8 3.Kxh2 +- (3.38) depth: 7/17 00:00:00 22kN 1.Rc6 Qd7 2.Rf1 Qe8 3.Re6 Qd8 4.Rfe1 Qf8 +- (3.56) depth: 8/19 00:00:00 74kN 1.Rc6 Qd7 2.Rf1 Qf5 3.Rfc1 Qf1+ 4.Kxh2 Qf4+ 5.g3 Qd2+ +- (3.66) depth: 9/21 00:00:00 179kN 1.Rc2 +- (3.69) depth: 9/21 00:00:00 205kN 1.Rc2 Qd7 +- (3.84) depth: 9/21 00:00:00 218kN 1.Rc2 Qd7 2.Rf1 Qf5 3.Rf4 Qc5 4.Rff2 Qf5 +- (3.84) depth: 10/19 00:00:01 391kN 1.Rc3 +- (3.88) depth: 10/20 00:00:01 448kN 1.Rc3 Qd7 2.Re1 Qe6 3.Re4 Qd7 4.Rce3 Qd1+ +- (4.56) depth: 10/21 00:00:01 477kN 1.Rc3-- +- (4.25) depth: 11/21 00:00:02 756kN 1.Rc3 Qd7 2.Rd2 Qe8 3.Re3 Qc8 4.Re4 Qc1+ 5.Kxh2 Qc7+ +- (3.84) depth: 11/24 00:00:02 1016kN 1.Rc4 +- (3.88) depth: 11/24 00:00:03 1177kN 1.Rc4 Qd7 2.Rd6 Qc7 3.Rf6 Qd8 4.Rf1 Qe8 5.Rb4 Qd8 +- (4.63) depth: 11/24 00:00:03 1209kN 1.Rc4-- +- (4.31) depth: 12/23 00:00:04 1625kN 1.Rc4 Qd7 2.Rd5 Qe8 3.Re4 Qc8 4.Rde5 Qc1+ 5.Kxh2 Qf4+ +- (3.78) depth: 12/27 00:00:08 3260kN 1.Rc3 +- (3.81) depth: 12/27 00:00:10 4517kN 1.Rc3 Qd7 2.Rd4 Qe8 3.Re3 Qa8 4.Re7 Qa1+ 5.Kxh2 Qh1+ +- (4.16) depth: 12/27 00:00:11 4561kN 1.Rc3-- +- (3.84) depth: 13/25 00:00:11 4922kN 1.Rc3 Qd7 2.Rd4 Qe8 3.Re4 Qc6 4.Rc5 Qd7 5.Rd5 Qc8 +- (3.78) depth: 13/27 00:00:12 5295kN 1.Rc4 +- (3.81) depth: 13/27 00:00:12 5325kN 1.Rc4 Qd7 2.Rd5 Qc7 +- (3.94) depth: 13/27 00:00:13 5583kN 1.Rc4! +- (4.25) depth: 14/26 00:00:16 6893kN 1.Rc4 Qd7 2.Rd5 Qc7 3.Rf5 Qd8 4.Rd4 Qb8 5.Rf1 Qa8 +- (4.34) depth: 14/28 00:00:17 7669kN 1.Rc3 +- (4.38) depth: 14/29 00:00:20 9002kN 1.Rc3-- +- (4.06) depth: 15/29 00:00:27 12613kN 1.Rc3 Qd7 2.Rd5 Qc7 3.Rc4 Qb8 4.Rd1 Qf8 5.Rf4 Qe8 +- (3.75) depth: 15/31 00:00:47 21889kN 1.Rc4 +- (3.91) depth: 15/31 00:00:47 21906kN 1.Rc4 Qd7 2.Rd5 Qc7 +- (4.47) depth: 15/31 00:00:50 23255kN 1.Rc4-- +- (4.16) depth: 16/30 00:01:07 31378kN 1.Rc4 +- (4.16) depth: 16/31 00:01:07 31516kN 1.Rc4-- +- (3.84) depth: 17/33 00:01:52 53341kN 1.Rc4 +- (3.84) depth: 17/33 00:01:52 53344kN 1.Rc4-- +- (3.53) depth: 18/37 00:03:57 115619kN 1.Rc4 +- (3.53) depth: 18/37 00:04:02 118052kN 1.Rc4-- +- (3.22) depth: 19/39 00:11:46 357039kN 1.Rc4 +- (3.22) depth: 19/39 00:11:46 357045kN (Soares, Cabo Frio 09.12.1999)
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