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For Marco---possible Stockfish bug
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Marek Kwiatkowski



Joined: 14 Feb 2010
Posts: 536
PostPost subject: Re: For Marco---possible Stockfish bug    Posted: Wed Feb 08, 2012 1:54 pm Reply to topic Reply with quote
It is a pity that such an interesting theme turns out to be my blog only Confused .

I found (very quickly) a next simpler (but classic) example.
[d]8/7P/8/8/K7/p1b5/1k6/1B6 b - - 0 1
   ::    ::    ::    ::
::    ::    ::    :: WP
   ::    ::    ::    ::
::    ::    ::    ::    
WK ::    ::    ::    ::
BP    BB    ::    ::    
   BK    ::    ::    ::
:: WB ::    ::    ::    
Code:

Sfx (VALUE_DRAW = -1):
  6/7   00:02          2.730   1.134    0,00   Bc3e5 Ka4b4 a3a2 Bb1xa2 Kb2c1 Kb4a4 Be5c3 h7h8R Bc3xh8 Ka4b5
  7/9   00:02          3.850   1.569    0,00   Bc3e5 Ka4b4 a3a2 Bb1xa2 Kb2c1 Kb4a4 Kc1d1 Ka4b5 Be5b2
  8/10   00:02          9.262   3.751   +0,44   Bc3e5 Ka4b4 Be5d4 Kb4a4 Bd4c3 h7h8N Bc3xh8 Ka4b4 Bh8c3+ Kb4a4

Code:

Sf (VALUE_DRAW = 0):

 13/8   00:02         18.460   7.476    0,00   a3a2 Bb1xa2 Bc3d4 h7h8R Bd4xh8 Ba2b1 Kb2xb1
 14/8   00:02         24.538   9.874    0,00   a3a2 Bb1xa2 Bc3d4 h7h8R Bd4xh8 Ba2b1 Kb2xb1
 15/30   00:03        781.802   227.400   +10,34   Bc3d4 Ka4b4 Bd4e5 Kb4a4 Be5c3 h7h8N Bc3xh8 Ka4b4 Bh8e5 Kb4a4 Be5d6 Bb1f5 a3a2 Ka4b5 a2a1Q Bf5e6 Qa1c1 Be6c4 Qc1g5+ Kb5a4

A 7-depth difference (!) Shocked
What about two VALUE_DRAW ? Very Happy
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Subject Author Date/Time
For Marco---possible Stockfish bug Louis Zulli Tue Jan 31, 2012 5:49 pm
      Re: For Marco---possible Stockfish bug Marco Costalba Tue Jan 31, 2012 7:12 pm
      Re: For Marco---possible Stockfish bug Joona Kiiski Wed Feb 01, 2012 7:56 am
            Re: For Marco---possible Stockfish bug Marek Kwiatkowski Wed Feb 01, 2012 10:02 am
                  Re: For Marco---possible Stockfish bug Joona Kiiski Wed Feb 01, 2012 12:48 pm
                        Re: For Marco---possible Stockfish bug Louis Zulli Wed Feb 01, 2012 2:41 pm
                              Re: For Marco---possible Stockfish bug Marek Kwiatkowski Wed Feb 01, 2012 7:15 pm
                                    Re: For Marco---possible Stockfish bug Marco Costalba Wed Feb 01, 2012 7:23 pm
                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Wed Feb 01, 2012 9:05 pm
                                    Re: For Marco---possible Stockfish bug Joona Kiiski Wed Feb 01, 2012 8:32 pm
                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Wed Feb 01, 2012 9:02 pm
                                                Re: For Marco---possible Stockfish bug Joona Kiiski Thu Feb 02, 2012 8:30 am
                                                      Re: For Marco---possible Stockfish bug Marek Kwiatkowski Thu Feb 02, 2012 8:36 am
                                                            Re: For Marco---possible Stockfish bug Joona Kiiski Thu Feb 02, 2012 10:52 am
                                                                  Re: For Marco---possible Stockfish bug Marek Kwiatkowski Thu Feb 02, 2012 2:08 pm
                                                                        Re: For Marco---possible Stockfish bug Joona Kiiski Thu Feb 02, 2012 3:45 pm
                                                                              Re: For Marco---possible Stockfish bug Marek Kwiatkowski Thu Feb 02, 2012 5:32 pm
                                                                                    Re: For Marco---possible Stockfish bug david nash Thu Feb 02, 2012 6:14 pm
                                                                                    Re: For Marco---possible Stockfish bug Richard Vida Thu Feb 02, 2012 7:23 pm
                                                                                          Re: For Marco---possible Stockfish bug Marco Costalba Thu Feb 02, 2012 8:04 pm
                                                                                          Re: For Marco---possible Stockfish bug Robert Wagner Campos Thu Feb 02, 2012 8:59 pm
                                                                                          Re: For Marco---possible Stockfish bug Uri Blass Thu Feb 02, 2012 10:41 pm
                                                                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Thu Feb 02, 2012 9:01 pm
                                                                                          Re: For Marco---possible Stockfish bug Sven Schüle Thu Feb 02, 2012 11:28 pm
                                                                                          Re: For Marco---possible Stockfish bug Robert Wagner Campos Fri Feb 03, 2012 12:26 pm
                                                                                          Re: For Marco---possible Stockfish bug Uri Blass Fri Feb 03, 2012 2:14 pm
                                                                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Fri Feb 03, 2012 2:21 pm
                                                                                          Re: For Marco---possible Stockfish bug Evert Glebbeek Fri Feb 03, 2012 2:41 pm
                                                                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Fri Feb 03, 2012 2:58 pm
                                                                                          Re: For Marco---possible Stockfish bug Sam Hamilton Fri Feb 03, 2012 3:23 pm
                                                                                          Re: For Marco---possible Stockfish bug Evert Glebbeek Sat Feb 04, 2012 7:07 am
                                                                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Sat Feb 04, 2012 9:31 am
                                                                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Sun Feb 05, 2012 4:20 pm
                                                                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Sun Feb 05, 2012 5:24 pm
                                                                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Wed Feb 08, 2012 1:54 pm
                                                                                          Re: For Marco---possible Stockfish bug Joerg Oster Wed Feb 08, 2012 5:14 pm
                                                                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Wed Feb 08, 2012 5:49 pm
                                                                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Sun Feb 19, 2012 5:37 pm
                                                                                          Re: For Marco---possible Stockfish bug Robert Wagner Campos Fri Feb 03, 2012 6:33 pm
                                                                                          Re: For Marco---possible Stockfish bug Robert Wagner Campos Fri Feb 03, 2012 6:15 pm
                                                                                          Re: For Marco---possible Stockfish bug Louis Zulli Sat Feb 04, 2012 1:50 am
                                                Re: For Marco---possible Stockfish bug Marek Kwiatkowski Fri Feb 03, 2012 2:08 pm
                                                      Re: For Marco---possible Stockfish bug Kevin Hearn Fri Feb 03, 2012 3:49 pm
                                                            Re: For Marco---possible Stockfish bug Marek Kwiatkowski Fri Feb 03, 2012 6:45 pm
                              Re: For Marco---possible Stockfish bug Joerg Oster Wed Feb 01, 2012 8:38 pm
                                    Re: For Marco---possible Stockfish bug Louis Zulli Wed Feb 01, 2012 9:14 pm
                                          Re: For Marco---possible Stockfish bug Joerg Oster Thu Feb 02, 2012 7:23 am
                                                Re: For Marco---possible Stockfish bug Marek Kwiatkowski Thu Feb 02, 2012 8:29 am
                                    Re: For Marco---possible Stockfish bug Louis Zulli Wed Feb 01, 2012 9:38 pm
                                          Re: For Marco---possible Stockfish bug Marek Kwiatkowski Wed Feb 01, 2012 9:54 pm
                                                Re: For Marco---possible Stockfish bug Louis Zulli Wed Feb 01, 2012 11:05 pm
                                                      Re: For Marco---possible Stockfish bug Marek Kwiatkowski Wed Feb 01, 2012 11:11 pm
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