Author: Eelco de Groot
Date: 12:28:10 02/10/02
Go up one level in this thread
On February 08, 2002 at 16:05:22, ALI MIRAFZALI wrote: >Some of my previous posting on this Topic where solved By some programs; >(Like Sjeng)(which I do not think is a good program) this time I am >sure That no program in The WORLD will even Come close to Solving >this.Theposition is from a game between an IM and a GM (with the GM winning). >In my opinion the Position is More difficult than all of THE NOLOT famous >test Positions.It should therefore serve an a benchmark.Needless to say finding >such positions is no easy matter ;because it requires many hours (days;Months) >of research. >[D]r1bq1r2/p2np1k1/3p2pR/3pP3/2pP4/5N2/PP2Q1P1/2KR1B2 w >Important Note:the solution is not sensative to Extentions!! >The solution as played in the actual game is:(in great style):19.Rxg6+!! Kxg6 >20.Nh4+ Kh6 21.Qe3+ Kh7 22.Bd3+!! cxb3 23.Qxd3+ Kh8 24.Rh1 Nf6 25.exf6 Qc7+ >26.Kb1 Rxf6 27.Nf3+ Kg8 28.Qh7+ Kf8 29.Qh8+ Kf7 30.Ng5+ Kg6.31.Qh5+ (1-0) >What does your program say? For Comparison here is the line given by >CM 8000 after 11 hours of furious Computation on a 500 MHZ Computer >19.Qe3 Rxf3 20.gxf3 Nf8 21.Bh3 Qb6 22.exd6 Rb8 23.Rd2 Qxd6 (No Cigar). I didn't know that this was posted before as Dann points out. --------------------- http://www.it.ro/ccc_search/ccc.php?find_thread=195352 "The second position comes from the game Michal Krasenkow(White) vs Bodgan Grabarczk(Black) 57 Polish Championship,Plock,2000 After 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 0-0 5.h3 c6 6.e5 Ne8 7.f4 d6 8.Nf3 f6 9.Be3 fxe5 10.fxe5 Nc7 11.Qe2 Nd7 12.0-0-0 b5 13.h4 bxc4 14.h5 Nd5 15.hxg6 hxg6 16.Nxd5 cxd5 17.Bh6 Bxh6+ 18.Rxh6 Kg7 .Here White found the incredible 19.Rxg6+!!! This is the move that the above mentioned programs (Fritz6, CM8000) were not able to find even after 24 hours.It does lead needless to say to a win by force. For the record the game ended 19....Kxg6 20.Nh4+ Kh6 21.Qe3+ Kh7 22.Bd3+!! cxd3 23.Qxd3+ Kh8 24.Rh1 Nf6 25.exf6 Qc7+ 26.Kb1 Rxf6 27.Nf3+ Kg8 28.Qh7+ Kf8 29.Qh8+ Kf7 30.Ng5+ Kg6 31.Qh5+ Black Resigned." ---------------------- Not really a serious program to try this, as Q5T personality is only meant for finding combinations and unsound sacs, but at least it does play the keymove here :) Only after 1 hour 10 minutes does the line with 20.Nh4 and 22.Bd3+ also appear on the screen: [Event ""] [Site ""] [Date ""] [Round ""] [White ""] [Black ""] [Result ""] [FEN "r1bq1r2/p2np1k1/3p2pR/3pP3/2pP4/5N2/PP2Q1P1/2KR1B2 w - -"] * [D]r1bq1r2/p2np1k1/3p2pR/3pP3/2pP4/5N2/PP2Q1P1/2KR1B2 w - - Game begin 00:00 03.00 3.13 1.Qe3 Kf7 2.e6+ Ke8 00:00 05.00 3.02 1.Qe3 Rh8 2.Rxg6+ Kf8 3.exd6 00:00 06.00 2.32 1.Qe3 Rh8 2.Ng5 Kxh6 3.Nf7+ Kg7 4.Nxd8 00:07 06.02 2.32 1.Rxg6+ 00:09 07.00 1.93 1.Qe3 Rh8 2.Ng5 Nxe5 3.Rxh8 Kxh8 4.dxe5 Qb6 00:15 07.01 1.93 1.Rxg6+ 00:24 07.01 2.98 1.Rxg6+ Kxg6 2.Qc2+ Kg7 3.Ng5 Kh6 4.Be2 Kxg5 5.Qh7 Rf2 6.Bf3 01:48 08.00 3.72 1.Rxg6+ Kxg6 2.Qc2+ Kg7 3.Ng5 Kh6 4.Qh7+ Kxg5 5.Qg7+ Kf5 6.Be2 Nxe5 7.dxe5 06:26 09.00 3.39 1.Rxg6+ Kxg6 2.Qc2+ Kg7 3.Ng5 Nf6 4.exf6+ Kxf6 5.Qh7 Rh8 6.Qf7+ Kxg5 7.Qg7+ Kf5 (6 minutes 26 seconds) 10:22 10.00 4.09 1.Rxg6+ Kxg6 2.Nh4+ Kh6 3.Qe3+ Kh7 4.Bd3+ cxd3 5.Qxd3+ Kh8 6.Rh1+ Rf7 7.Ng6+ (Add one hour to time given) Celeron 500 MHz, Rebel Century 2 with Q5T personality, running under ECTool 6.
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