Author: Odd Gunnar Malin
Date: 06:06:04 11/24/04
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On November 24, 2004 at 08:54:45, Jason Kent wrote: >How long does it take your engine to find a mate in 13? > Since you don't tell which processor you use you want to know 'how long' in ply? >[D]8/5p1k/7P/7R/2pPp3/1nP5/1r3r1P/6RK b - - 0 54 >8/5p1k/7P/7R/2pPp3/1nP5/1r3r1P/6RK b - - 0 54 > >CM 10th Edition Steadfast finds it in 2:14 > >10thEd_SteadF WB1 124 MB: >3001 00:00 2.59 e3 Rg7+ Kh8 Rg1 f5 >4001 00:00 2.70 e3 d5 Rbd2 Rg7+ Kh8 >5001 00:00 2.76 e3 Rg7+ Kh8 Re5 Rxh2+ Kg1 Rxh6 Rxf7 Kg8 >6001 00:00 2.84 e3 Rg7+ Kh8 Re5 Rf1+ Rg1 e2 d5 Kh7 Re8 Rxg1+ Kxg1 Kxh6 >7001 00:01 4.26 e3 Re1 Rbc2 Rg1 Rxc3 Rg7+ Kh8 Re5 Rc1+ Rg1 Rxg1+ Kxg1 >8002 00:02 6.64 e3 Re1 Nd2 Rh3 Nf3 Rxf3 Rxf3 Kg1 Rd2 Rb1 Kxh6 >8002 00:02 6.75 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Rf1+ Kg2 e2 Re3 >e1Q Rxe1 Rxe1 >9002 00:03 9.59 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 >Kg2 e2 Kxf3 e1Q d5 Qxc3+ Ke4 Kxh7 >10002 00:05 10.24 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 >Kg2 e2 Kxf3 e1Q Kf4 Qxc3 Ke4 Qe1+ Kf4 Kxh7 >11003 00:09 13.28 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 >Kg2 Rf6 Kg3 e2 Kg4 e1Q Kg5 >12003 00:16 14.32 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 >Kg2 Rf6 Kg3 e2 Kg4 e1Q Kg5 Rg6+ Kf4 Qxc3 >13003 00:31 14.66 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 >Kg2 Rf6 Kg3 e2 Kg4 e1Q Kg5 Rh6 Kf5 Qxc3 >14004 02:14 M13 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 >Kg2 Rf6 Kg3 e2 Kg4 e1Q Kg5 Qf2 Kh5 Qxh2+ Kg4 Rf4+ Kg5 Qh4+ I would guess my engine will search for days so I don't try it but here are the result for Gandalf 6.0 on a Pentium Centrino 2GHz with 400MB hashtable. 00:00:00.8 4,32 5 22079 e3 Re1 Rbc2 Rg1 00:00:00.8 4,92 6 35719 e3 Re1 00:00:00.9 4,73 6 52520 e3 Re1 Rbc2 d5 Rfd2 Rh3 00:00:00.9 4,96 7 110967 e3 Re1 Rfc2 Rh3 Rxc3 Rhxe3 Rxe3 Rxe3 Nxd4 Rh3 00:00:01.1 5,31 8 214475 e3 Re1 Rfc2 d5 Rxc3 Rf5 Rcc2 Rxf7+ Kxh6 00:00:01.3 5,31 8 388858 Nd2 Rg7 00:00:01.4 5,60 8 409150 Nd2 Rg7 00:00:01.4 6,24 8 433647 Nd2 Rg7 00:00:01.5 7,52 8 474180 Nd2 Rg7 00:00:01.7 9,56 8 718538 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 Kg2 e2 Kxf3 e1Q d5 Qxc3+ Ke4 Kxh7 00:00:02.0 12,64 9 972986 Nd2 Rg7+ 00:00:02.5 12,64 9 1453567 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 Kg2 Rf6 d5 e2 d6 e1Q 00:00:02.7 15,10 10 1662205 Nd2 Rg7+ 00:00:03.1 15,26 10 2085514 Nd2 Rf5 Rxf5 Rg7+ Kxh6 Rg8 Rf2 Rh8+ Kg7 Rb8 Nb3 Rg8+ Kxg8 00:00:04.4 17,63 11 3291749 Nd2 Rf5 00:00:04.9 20,00 11 3790228 Nd2 Rg7 00:00:05.3 24,73 11 4194885 Nd2 Rg7 00:00:05.4 34,20 11 4324027 Nd2 Rg7 00:00:05.5 53,15 11 4416487 Nd2 Rg7 00:00:12.2 16,76 11 13217537 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 Kg2 Rf6 Kg3 e2 Kh4 e1Q+ Kg5 Qe6 h3 Qf5+ Kh4 Rh6+ Kg3 Qxh3+ Kf2 Qxc3 00:00:12.8 18,65 12 13816709 Nd2 Rg7+ 00:00:13.3 20,54 12 14285040 Nd2 Rg7+ 00:00:13.5 24,32 12 14527208 Nd2 Rg7+ 00:00:13.6 31,87 12 14651639 Nd2 Rg7+ 00:00:13.7 46,97 12 14752078 Nd2 Rg7+ 00:00:25.4 16,64 12 29179426 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 Kg2 Rf6 Kh3 e2 Kg4 e1Q Kg5 Rf3 Kh5 Qxc3 00:00:26.7 17,82 13 30513209 Nd2 Rg7+ 00:00:28.7 19,00 13 32270260 Nd2 Rg7+ 00:00:29.0 21,37 13 32619256 Nd2 Rg7+ 00:00:29.2 26,11 13 32815951 Nd2 Rg7+ 00:00:29.4 35,58 13 32965509 Nd2 Rg7+ 00:00:29.7 54,52 13 33403163 Nd2 Rg7+ 00:01:07.2 Mate in 14 13 80793118 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 Kg2 Rf2+ Kg3 Rf1 d5 e2 Kg4 e1Q d6 Qe4+ Kh5 Rf5+ Kh6 Qe3# 00:01:20.8 Mate in 13 14 98145784 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 Kg2 Rf6 h3 e2 d5 e1Q h4 Qxh4 d6 Rf2+ Kg1 Qh2# 00:02:12.1 Mate in 13 15 163692251 Nd2 Rg7+ Kh8 h7 Rb1+ Rg1 Rxg1+ Kxg1 e3 Rh3 Nf3+ Rxf3 Rxf3 Kg2 Rf6 h3 e2 d5 e1Q h4 Qxh4 d6 Rf2+ Kg1 Qh2# Odd Gunnar
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