Author: Uri Blass
Date: 23:50:32 09/21/04
Go up one level in this thread
On September 22, 2004 at 01:28:35, John Merlino wrote: >On September 21, 2004 at 22:56:29, Daniel Jackson wrote: > >>On September 21, 2004 at 21:22:07, John Merlino wrote: >> >>>On September 20, 2004 at 23:18:01, Daniel Jackson wrote: >>> >>>>On September 20, 2004 at 18:36:50, Dann Corbit wrote: >>>> >>>>>On September 20, 2004 at 17:44:57, Daniel Jackson wrote: >>>>> >>>>>>On September 20, 2004 at 12:59:55, Dann Corbit wrote: >>>>>> >>>>>>>On September 18, 2004 at 15:59:24, Daniel Jackson wrote: >>>>>>> >>>>>>>>[D]rnbqkbnr/qqqqqqqq/8/8/8/8/QQQQQQQQ/RNBQKBNR w >>>>>>>> >>>>>>>>If someone has superfast hardware and a program that excels at mates please run >>>>>>>>this position, to find the shortest mate....whomever moves first will win. >>>>>>>> >>>>>>>>Daniel >>>>>>> >>>>>>>Shredder 7.04 after 100,000 seconds: >>>>>>> >>>>>>>Analysis from E:\explode.epd >>>>>>>9/18/2004 11:04:41 PM Level: 100000 Seconds >>>>>>>Analyzing engine: Shredder 7.04 UCI >>>>>>> >>>>>>>1) >>>>>>> Avoid move: >>>>>>> Best move (Shredder 7.04 UCI): Qa2xf7 >>>>>>> Not found in: 27:46:40 >>>>>>> illegal command >>>>>>> 2/4 03:08 84.254.222 448.272 +10.15 Qf2xf7+ Qg7xf7 Qh2xc7 Qb7xc7 Qd2xd7+ >>>>>>>Qc7xd7 Rh1xh7 Qa7xa2 Rh7xf7 Qa2xf7 Ra1xa8 >>>>>>> 3/32 03:10 85.070.720 448.146 +10.15 Qf2xf7+ Qg7xf7 Qh2xc7 Qb7xc7 Qd2xd7+ >>>>>>>Qc7xd7 Rh1xh7 Qa7xa2 Rh7xf7 Qa2xf7 Ra1xa8 >>>>>>> 4/35 10:52 284.248.110 436.109 +9.97 Qf2xf7+ Qg7xf7 Qh2xc7 Qb7xc7 Qd2xd7+ >>>>>>>Qd8xd7 Rh1xh7 >>>>>>> 5/36- 22:20 579.205.924 432.152 +9.72 Qf2xf7+ Qg7xf7 Qh2xc7 Qb7xg2 Qc7xd7+ >>>>>>>Nb8xd7 Qe2xe7+ Bf8xe7 Qd2xg2 Be7h4+ >>>>>>> 5/36 23:20 603.628.888 431.206 +9.30 Qf2xf7+ Qg7xf7 Qc2xc7 Qd8xc7 Qh2xc7 >>>>>>>Qd7xc7 Rh1xh7 Qf7xh7 Qg2xb7 Qc7xb7 Qb2xb7 Bc8xb7 >>>>>>> 5/38+ 26:29 679.501.672 427.552 +9.31 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xc2 Qd1xc2 >>>>>>>Qh7xc2 Qf2xf7+ Ke8xf7 Qh2f4+ Qe7f6 Qb2xc2 Qb7xg2 Bf1xg2 >>>>>>> 5/38+ 26:34 681.489.044 427.492 +9.66 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xc2 Qd1xc2 >>>>>>>Qh7xc2 Qf2xf7+ Ke8xf7 Qh2f4+ Qc2f5 >>>>>>> 5/38 28:10 720.051.153 425.924 +10.02 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xc2 Qd1xc2 >>>>>>>Qd7xd2+ Qc2xd2 Qb7xa7 >>>>>>> 6/37 42:00 1.049.164.383 416.293 +9.96 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xc2 Qd1xc2 >>>>>>>Qf7xf2+ Qg2xf2 Qh7xc2 Ra7xb7 >>>>>>> 7/37+ 1:06:31 1.624.364.439 407.005 +10.21 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xc2 >>>>>>>Qd1xc2 Qf7xf2+ Qg2xf2 Qb7xa7 Qf2xa7 Qh7xc2 >>>>>>> 7/42 1:47:23 2.566.186,666 398.290 +10.49 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xc2 >>>>>>>Qd1xc2 Qf7xf2+ Qg2xf2 Qh7xc2 Qd2xc2 Qe7xe2+ Bf1xe2 Qb7xa7 Qh2xh8 >>>>>>> 8/39+ 7:34:33 10.525.224,214 385.924 +10.74 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xc2 >>>>>>>Qd1xc2 Qf7xf2+ Qg2xf2 Qh7xc2 Qd2xc2 Qb7xb2 Bc1xb2 Ra8xa7 Qh2xh8 >>>>>>> 8/40 7:53:14 10.939.686,936 385.281 +11.03 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xc2 >>>>>>>Qd1xc2 Qd7xd2+ Nb1xd2 Qb7xa7 Qh2xh7 Rh8xh7 Rh1xh7 >>>>>>> 9/43 11:39:24 15.815.946,896 376.886 +10.89 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xh2 >>>>>>>Rh1xh2 Qb7xg2 Qf2xg2 Qh7xc2 Ra7xd7 >>>>>>> 10/49 25:05:43 34.460.750,880 381.441 +10.78 Qa2xf7+ Qg7xf7 Ra1xa7 Qc7xh2 >>>>>>>Rh1xh2 Qb7xg2 Rh2xg2 >>>>>>> 9/20/2004 2:51:51 AM, Time for this analysis: 03:46:44, Rated time: 27:46:40 >>>>>>> >>>>>>>0 of 1 matching moves >>>>>>>9/20/2004 2:51:52 AM, Total time: 3:47:10 AM >>>>>>>Rated time: 27:46:40 = 100000 Seconds >>>>>> >>>>>>Thanks for the effort! >>>>> >>>>>It's about the same complexity as this famous position: >>>>>[D]rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - >>>>>Any guess as to how many moves to the shortest forced mate? >>>>>;-) >>>> >>>>No I don't think so:o) But you can now try and find better moves for both >>>>sides:) >>>> >>>>[Event ""] >>>>[Site ""] >>>>[Date "2004.9.20"] >>>>[Round ""] >>>>[White "Chessmaster"] >>>>[Black "Chessmaster"] >>>>[TimeControl "-"] >>>>[Result "1-0"] >>>>[Setup "1"] >>>>[D]rnbqkbnr/qqqqqqqq/8/8/8/8/QQQQQQQQ/RNBQKBNR w KQkq - 0 1 >>>> >>>>1.Qaxf7+ Qxf7 2.Rxa7 Qcxc2 3.Q1xc2 Qxg2 4.Qhxg2 Rxa7 5.Rxh7 Rxh7 6.Qxb8 >>>>Rc7 7.Qxd7+ Rxd7 8.Ba3 Qxf2+ 9.Qxf2 Rf7 10.Bxe7 Bxe7 11.Qg6 Nf6 12.Qfxf6 >>>>Rd1+ 13.Qxd1 Qa5+ 14.Nc3 Qxc3+ 15.Qxc3 Bh4+ 16.Ke2 Bg3 17.Qcxc8+ Ke7 >>>>18.Qe8# 1-0 >>>> >>>>Daniel >>> >>>This done with analysis help from CM_SKR on an AMD 2500: >>> >>>[Event ""] >>>[Site ""] >>>[Date "2004.9.21"] >>>[Round ""] >>>[White "Human"] >>>[Black "Human"] >>>[TimeControl "-"] >>>[Result "1-0"] >>>[Setup "1"] >>>[FEN "rnbqkbnr/qqqqqqqq/8/8/8/8/QQQQQQQQ/RNBQKBNR w KQkq - 0 1"] >>> >>>1.Qaxf7+ Qxf7 2.Qxd7+ Qcxd7 3.Rxa7 Qxd1+ 4.Qxd1 Qxd1+ 5.Kxd1 Qxf2 >>>6.Qgxf2 Qxh2 7.Rxb7 Qxf2 8.Rxe7+ Nxe7 9.Rxh8 Qxe2+ 10.Bxe2 Ra5 11.Qxb8 >>>Rd5+ 12.Ke1 Kf7 13.Bc4 Bg7 14.Rxc8 Ke6 15.Qb6+ Kf5 16.Rc5 Bf6 17.Bd3+ >>>Kg4 18.Qxf6 Re5+ 19.Qxe5 Nf5 20.Qxf5+ Kg3 21.Qh3# 1-0 >> >>Thanks John....Check this line out if you have the time. It's a line where you >>mate in 20 moves. >> >> >>[Event ""] >>[Site ""] >>[Date "2004.9.21"] >>[Round ""] >>[White "Chessmaster"] >>[Black "Chessmaster"] >>[TimeControl "-"] >>[Result "*"] >>[Setup "1"] >>[D]rnbqkbnr/qqqqqqqq/8/8/8/8/QQQQQQQQ/RNBQKBNR w KQkq - 0 1"] >> >>1.Qaxf7+ Qxf7 2.Rxa7 Qxg2 3.Qhxg2 Rxa7 4.Qxh8 Qhf5 5.Qcxf5 Qdxf5 6.Qxd8+ >>Qxd8 7.Qxd8+ Kxd8 8.Qxf5 Qxf5 9.Qd4+ Ke8 10.Qxa7 Qxb1 11.Qxg8 Qxc1+ >>12.Kf2 Qf4+ 13.Nf3 Qxe2+ 14.Bxe2 Nd7 15.Qe6+ Kd8 16.Qa5+ Qc7 17.Qg5+ Nf6 >>18.Qgxf6+ Qe7 19.Rd1+ Bd7 20.Qxd7# * >> >>Daniel >> >>http://www.talkchess.com/forums/1/message.html?388552 >> >>We'll solve this mate yet!;-) > >I don't think that we'll solve this mate. I just offered another line more for >amusement than anything else. I think that it is possible that it is a question of motivation. If people offer 1,000,000$ for the first person who solve the mate then there is a chance that somebody may come with a huge tree that prove a forced mate in a few months from today. Uri
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