Author: chandler yergin
Date: 10:09:02 11/13/04
Go up one level in this thread
On November 13, 2004 at 10:44:52, Eelco de Groot wrote: >On November 13, 2004 at 08:27:14, chandler yergin wrote: > >>Composed by Frank Healey in 1846 >> >>[D]8/8/3K4/2R5/8/2Pk4/5Q2/8 w - - 0 1 >> >>Simple for Humans... >> >>A Mate in 3 >> >>Why Engines have trouble with it? I tried it with Shredder 8, Fritz 8, & Hiarchs 8 I opened 'new position' in Chessbase Cleared Board, Pasted Fen; click OK Activated engine Clicked on 'infinite analysis They found Mate in 5! Not 3. After 7 minutes.. they still had not found Mate in 3. Perhaps it's "operator" error... but I know EGTB was on. So...?? What's goin on? Please explain your procedure. Thanks, CY > >Nice problem, Chandler! My favorite Miniature ;) > >Pro Deo S&D 6_7e3, 500 MHz Celeron, Statistics window of Chess Partner >interface: > >00:00:00.6 13,71 1 4 Ke5 >00:00:00.7 13,88 1 6 Kd5 >00:00:00.7 14,00 1 14 Qd4+ Kc2 >00:00:00.7 14,02 2 145 Qd4+ Ke2 >00:00:00.7 14,49 2 1222 Qd4+ Ke2 Ra5 >00:00:00.7 14,49 2 1556 Rc7 >00:00:00.7 14,49 2 1559 Rc7 >00:00:00.8 22,27 2 1575 Rc7 Ke4 Re7+ Kd3 Qd4+ Kc2 >00:00:00.8 22,27 2 1931 Rc8 >00:00:00.8 22,27 2 1934 Rc8 >00:00:00.8 22,27 2 1931 Rc8 >00:00:00.8 Mate in 7 3 5140 Rc7 Ke4 Re7+ Kd3 >00:00:00.8 Mate in 7 3 6197 Rc7 Ke4 Re7+ Kd3 >00:00:00.9 Mate in 7 4 6361 Rc7 Ke4 Re7+ Kd3 >00:00:00.9 Mate in 7 4 9610 Rc7 Ke4 Re7+ Kd3 >00:00:00.9 Mate in 4 5 20984 Rc7 Ke4 Re7+ Kd3 Qd4+ Kc2 Re2+ Kb3 Qb4# >00:00:00.9 Mate in 4 5 35727 Rc7 Ke4 Re7+ Kd3 Qd4+ Kc2 Re2+ Kb3 Qb4# >00:00:01.0 Mate in 4 6 37098 Rc7 Ke4 Re7+ Kd3 Qd4+ Kc2 Re2+ Kb3 Qb4# >00:00:01.2 Mate in 4 6 162133 Rc7 Ke4 Re7+ Kd3 Qd4+ Kc2 Re2+ Kb3 Qb4# >00:00:01.3 Mate in 4 7 193095 Rc7 Ke4 Re7+ Kd3 Qd4+ Kc2 Re2+ Kb3 Qb4# >00:00:01.9 Mate in 4 7 276782 Rc7 Ke4 Re7+ Kd3 Qd4+ Kc2 Re2+ Kb3 Qb4# >00:00:02.2 Mate in 3 8 299705 Rc7 Ke4 Qg3 Kf5 Rf7+ Ke4 Qf3# >00:00:02.6 Mate in 3 8 350806 Kd7 >00:00:02.6 Mate in 3 8 350816 Kd7 >00:00:02.7 Mate in 2 8 353162 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:02.8 Mate in 3 8 350806 Kd7 >00:00:02.8 Mate in 2 8 364074 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:03.1 Mate in 2 9 370216 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:03.7 Mate in 2 9 425946 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:03.9 Mate in 2 10 436863 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:04.7 Mate in 2 10 520288 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:05.0 Mate in 2 11 537012 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:06.0 Mate in 2 11 641638 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:06.3 Mate in 2 12 663942 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:07.3 Mate in 2 12 783928 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:07.8 Mate in 2 13 806015 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:08.9 Mate in 2 13 937984 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:09.2 Mate in 2 14 961986 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:10.3 Mate in 2 14 1093917 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:10.8 Mate in 2 15 1117635 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:11.8 Mate in 2 15 1249353 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:12.2 Mate in 2 16 1272600 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:13.3 Mate in 2 16 1404469 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:13.8 Mate in 2 17 1427700 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:14.9 Mate in 2 17 1561164 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:15.2 Mate in 2 18 1585700 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:16.3 Mate in 2 18 1718835 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:16.8 Mate in 2 19 1743370 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:17.9 Mate in 2 19 1876472 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:18.2 Mate in 2 20 1901013 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:19.3 Mate in 2 20 2034160 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:19.8 Mate in 2 21 2058700 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:20.8 Mate in 2 21 2191850 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:21.2 Mate in 2 22 2216391 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:22.4 Mate in 2 22 2349538 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:23.0 Mate in 2 23 2374078 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:24.1 Mate in 2 23 2507228 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:24.7 Mate in 2 24 2531769 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:25.8 Mate in 2 24 2664916 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:26.2 Mate in 2 25 2689456 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:27.3 Mate in 2 25 2822606 Kd7 Ke4 Rd5 Kxd5 Qd4# >00:00:27.8 Mate in 2 26 2847147 Kd7 Ke4 Rd5 Kxd5 Qd4# > >Game window output of the engine, Pro Deo calls it a mate in three but Chess >Partner calls it mate in two, but its the same output of course: > > [Event "?"] > [Site "?"] > [Date "2004.11.13"] > [White "?"] > [Black "?"] > [Result "*"] > [FEN "8/8/3K4/2R5/8/2Pk4/5Q2/8 w - -"] > > > 8/8/3K4/2R5/8/2Pk4/5Q2/8 w - - > > 00:00:00 1.00 13.71 1.Ke5 > 00:00:00 1.01 13.89 1.Kd5 > 00:00:00 1.02 14.01 1.Qd4 Kc2 > 00:00:00 2.00 14.03 1.Qd4 Ke2 > 00:00:00 2.00 14.50 1.Qd4 Ke2 2.Ra5 > 00:00:00 2.05 14.50 1.Rc7 > 00:00:00 2.05 14.50 1.Rc7 > 00:00:00 2.05 22.28 1.Rc7 Ke4 2.Re7 Kd3 3.Qd4 Kc2 > 00:00:00 2.06 22.28 1.Rc8 > 00:00:00 2.06 22.28 1.Rc8 > 00:00:00 3.00 M 08 1.Rc7 Ke4 2.Re7 Kd3 > 00:00:00 3.00 M 08 1.Rc7 Ke4 2.Re7 Kd3 > 00:00:00 4.00 M 08 1.Rc7 Ke4 2.Re7 Kd3 > 00:00:00 4.00 M 08 1.Rc7 Ke4 2.Re7 Kd3 > 00:00:00 5.00 M 05 1.Rc7 Ke4 2.Re7 Kd3 3.Qd4 Kc2 4.Re2 Kb3 5.Qb4 > 00:00:00 5.00 M 05 1.Rc7 Ke4 2.Re7 Kd3 3.Qd4 Kc2 4.Re2 Kb3 5.Qb4 > 00:00:00 6.00 M 05 1.Rc7 Ke4 2.Re7 Kd3 3.Qd4 Kc2 4.Re2 Kb3 5.Qb4 > 00:00:00 6.00 M 05 1.Rc7 Ke4 2.Re7 Kd3 3.Qd4 Kc2 4.Re2 Kb3 5.Qb4 > 00:00:00 7.00 M 05 1.Rc7 Ke4 2.Re7 Kd3 3.Qd4 Kc2 4.Re2 Kb3 5.Qb4 > 00:00:01 7.00 M 05 1.Rc7 Ke4 2.Re7 Kd3 3.Qd4 Kc2 4.Re2 Kb3 5.Qb4 > 00:00:01 8.00 M 04 1.Rc7 Ke4 2.Qg3 Kf5 3.Rf7 Ke4 4.Qf3 > 00:00:02 8.22 M 04 1.Kd7 > 00:00:02 8.22 M 04 1.Kd7 > 00:00:02 8.22 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:02 8.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:02 9.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:03 9.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:03 10.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:04 10.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:04 11.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:05 11.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:05 12.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:06 12.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:07 13.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:08 13.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:08 14.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:09 14.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:10 15.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:11 15.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:11 16.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:12 16.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:13 17.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:14 17.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:14 18.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:15 18.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:16 19.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:17 19.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:17 20.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:18 20.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:19 21.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:20 21.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:20 22.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:21 22.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:22 23.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:23 23.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:24 24.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:25 24.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:25 25.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:26 25.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4 > 00:00:27 26.00 M 03 1.Kd7 Ke4 2.Rd5 Kxd5 3.Qd4
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