Author: Art Basham
Date: 11:20:55 01/02/03
Go up one level in this thread
Thanks.. yes, that solution looks correct to me! amazing! ++++++++++++++++ On January 02, 2003 at 13:36:45, Lieven Clarisse wrote: >On January 02, 2003 at 13:27:16, Art Basham wrote: > >>Thanks, but i am not sure if any program can find it.. >>i remember that the solution was rather difficult... >> >>I was just wondering how long it would take a program to find.. >>1. QxN+...etc. >> >> >>++++++++++++++ >> >>On January 02, 2003 at 13:02:08, Drexel,Michael wrote: >> >>>On January 02, 2003 at 12:47:12, Art Basham wrote: >>> >>>>White mates if ....black plays KxQ... >>>> >>>>[D]1r4r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - - 0 1 >>>> >>>>I do not remember the solution, but the white rook at a5 >>>>is brought back to a1 to mate the black King in about 8 or 9 moves..etc. >>>>I lost the solution..sorry...:-) >>>>Art >>> >>>are you searching for this? >>>1. Qxg6+ Kxg6 2. Bd3+ Kh5 3. g4+ Kxg4 4. Rg1+ Kh3 5. Bf1+ Kh2 6. Bg3+ Kxg1 7. >>>Ra1 :-) >>>it takes me about one minute with a little help of my friend Fritz. >>>I guess no program is able to find that. am I wrong? > > >Ruffian on my slow PIII 450 (100MB hash) >depth=13 1/44(Qxg6+) +0.91 Qxg6+ Kxg6 Bd3+ Kh5 g4+ Kxg4 Rg1+ Kh3 Bf1+ Kh2 Bg3+ >Kxg1 Ra1 Ra8 Rb1 Ra1 Kxa1 Qa7+ Na2 Qxa2+ Kxa2 Ra8+ Kb2 Ra2+ Kxa2 Bg5 Bh3+ Bc1 >Rxc1# >Nodes: 48700210 NPS: 223764 >Time: 00:03:37.64 > >--> but not proved the mate yet, (score 0.91) >--> a minute later!! > >depth=14 1/44(Qxg6+) +327.38 Qxg6+ Kxg6 Bd3+ Kh5 g4+ Kxg4 Rg1+ Kh3 Bf1+ Kh2 Bg3+ >Kxg1 Ra1 Ra8 Rb1 Ra1 Kxa1 Qa7+ Na2 Qxa2+ Kxa2 Ra8+ Kb2 Ra1 Rxa1 f2 Bh3+ f1=Q >Rxf1# >Nodes: 78086987 NPS: 241830 >Time: 00:05:22.90 > >very very impressive.
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