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can your engine see the draw
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pal larkin



Joined: 15 Feb 2010
Posts: 837

PostPost subject: can your engine see the draw    Posted: Mon Mar 08, 2010 5:28 am Reply to topic Reply with quote

     From Walther v Fischer 1959
     
     All the engines that I have tried (without tablebases) give White an advantage of about 2 pawns, even after a few minutes thinking...


[d]8/8/1P6/PBk5/K6p/7P/3b4/8 w - - 0 1[/d]
   ::    ::    ::    ::
::    ::    ::    ::    
   WP    ::    ::    ::
WP WB BK    ::    ::    
WK ::    ::    ::    BP
::    ::    ::    :: WP
   ::    BB    ::    ::
::    ::    ::    ::    



Analysis by spark-0.3a:

64.b7 Bf4 65.a6 Kb6 66.Be2 Ka7 67.Kb5 Bd6 68.Bc4 Be5 69.Bd3 Bd6 70.Kc6 Bf4 71.Kc5 Bb8 72.Kd4 Bd6 73.Bc4 Bf4 74.Bf1 Bc1 75.Ke5 Bd2 76.Bd3 Bc3+ 77.Kd5 Bd2 78.Be2 Bf4 79.Kc5 Be3+
+- (2.82) Depth: 1 00:00:00
+- (2.86) Depth: 62/76 00:02:13 1934mN



Analysis by Stockfish 1.6.3s(dc) 64bit:

64.b7 Bf4 65.Bd7 Bb8 66.Bf5 Kc6 67.Be4+ Kc5 68.a6 Kb6
+- (2.94) Depth: 1 00:00:00
+- (2.38) Depth: 7 00:00:00 15kN
64.Bd7 Bf4 65.Bf5 Bg3 66.Be4 Bb8 67.Bf3 Bf4 68.Bh5 Bb8 69.Be2 Be5 70.Bg4 Bg3 71.Bf5 Bf4 72.Bd7 Bg3 73.Be6 Bf4 74.b7 Kc6 75.Bd5+ Kc5 76.a6 Bb8 77.Bg2 Kb6 78.Bf1 Kc6 79.Bb5+ Kb6
+- (2.42) Depth: 7 00:00:00 17kN
+- (2.30) Depth: 28 00:00:02 3913kN
64.b7 Bf4 65.Bd3 Kc6 66.a6 Kb6 67.Bc4 Ka7 68.Kb5 Kb8 69.Ka4 Be3 70.Kb4 Bf4 71.Bb5 Bd2+ 72.Kc4 Be3 73.Ba4 Bf4 74.Kb4 Bg3 75.Kc5 Bf4 76.Kb4
+- (2.38) Depth: 28 00:00:02 4995kN
+- (2.14) Depth: 55 00:02:29 1881mN



Analysis by Komodo64 1.0 JA:

64.b7 Bf4 65.a6 Bb8 66.Bd3 Kb6 67.Kb4 Ka7 68.Kb5 Bh2 69.Kc5 Bg3 70.Be2 Bh2 71.Kc6 Bc7 72.Bf1 Be5 73.Bb5 Bb8 74.Kd7 Kb6 75.Bc4 Ka7 76.Ke8 Kb6 77.Kd8 Ka7 78.Be2 Be5 79.Bf1 Bb8
+- (1.66) Depth: 2 00:00:00
+- (1.98) Depth: 47 00:02:14 524mN

     
     
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Subject Author Date/Time
can your engine see the draw pal larkin Mon Mar 08, 2010 5:28 am
      Re: can your engine see the draw Eelco de Groot Mon Mar 08, 2010 9:55 am
            Re: can your engine see the draw DE VOS Walter Mon Mar 08, 2010 12:52 pm
      Re: can your engine see the draw Robert Flesher Mon Mar 08, 2010 1:00 pm
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