Author: m.d.hurd
Date: 01:55:21 09/27/03
Go up one level in this thread
On September 26, 2003 at 15:36:17, John Merlino wrote: >On September 26, 2003 at 14:56:04, m.d.hurd wrote: > >>On September 26, 2003 at 12:44:42, John Merlino wrote: >> >>>On September 26, 2003 at 12:29:09, Mihaly Szalai wrote: >>> >>>>I think most of the chess engines will show a positive score >>>>(i.e. will find 4.h8=B) in this position except Junior. (We talked >>>>about something similar earlier.) >>>> >>>>[D]8/7p/6pP/1B4P1/pp6/1k1K4/8/8 w - - 0 1 >>>> >>>>1. Be8 a3 2. Bxg6 hxg6 3. h7 a2 4. h8=B! >>>> >>>>You should try it with your engine. >>>> >>>>Thanks >>>>Mihaly >>> >>>It takes Chessmaster 9000, on a P4-2.4, 2:38 to find 4.h8=B: >>> >>>Time Depth Score Positions Moves >>>0:00 3/7 -0.75 10737 1.Be8 a3 2.Bxg6 Kb2 3.Bxh7 a2 4.Kc4 >>> a1=Q 5.Kxb4 >>>0:00 4/8 0.00 19788 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>0:00 5/9 0.00 45957 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>0:00 6/10 0.00 72363 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>0:00 7/11 0.00 132774 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>0:00 8/12 0.00 244835 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>0:01 9/13 0.00 459719 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>0:03 10/14 0.00 917335 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>0:07 11/15 0.00 1887372 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>0:15 12/16 0.00 4010653 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>0:33 13/17 0.00 8912233 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q >>> a1=Q 5.Qxa1 >>>2:38 14/18 3.11 37142500 1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=B >>> Ka3 5.Kc2 b3+ 6.Kc1 Ka4 7.Kb2 Kb4 >>> 8.Bg7 Kc4 9.Ka3 Kd5 10.Kxb3 Ke4 >>> 11.Kxa2 Kf5 >>> >>>jm >> >> >>Hello John >> >>I am surprised it takes so long. I get about 16 seconds on my Athlon xp2100. >> >>New game >>8/7p/6pP/1B4P1/pp6/1k1K4/8/8 w - - 0 1 >> >>Analysis by The King 3.23: >> >>1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8B Ka3 5.Kc2 b3+ 6.Kc1 Ka4 7.Kb2 Kb4 8.Bf6 Kc4 >>9.Ka3 Kd3 10.Kxb3 >>± (0.85) Depth: 15 00:00:16 5075kN >>(26.09.2003) >> >> >>Regards >> >>Mike > >I suspect you are using different personality settings than the default, which >is what I used. This is evidenced by the difference in reported depth when the >engine finds the move. > >jm I am using normal settings in chessbase gui, but with hash at 256 MB. Regards Mike
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