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Subject: max search depth postion

Author: Mike Byrne

Date: 11:49:04 06/29/03


illegal positon in normal chess, useful in identfying the max search depth in a
program.  I have come across some positions where a depth greater than 60 could
be useful. So I modify Crafty now to go to 100 ply.

White(1): [d]1k1b4/p1p1p3/P1P1P3/8/8/3p1p1p/3P1P1P/4B1K1 w - - 0 1
White(1): d

       +---+---+---+---+---+---+---+---+
    8  |   | *K|   | *B|   |   |   |   |
       +---+---+---+---+---+---+---+---+
    7  | *P|   | *P|   | *P|   |   |   |
       +---+---+---+---+---+---+---+---+
    6  | P |   | P |   | P |   |   |   |
       +---+---+---+---+---+---+---+---+
    5  |   |   |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    4  |   |   |   |   |   |   |   |   |
       +---+---+---+---+---+---+---+---+
    3  |   |   |   | *P|   | *P|   | *P|
       +---+---+---+---+---+---+---+---+
    2  |   |   |   | P |   | P |   | P |
       +---+---+---+---+---+---+---+---+
    1  |   |   |   |   | B |   | K |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

White(1): sn 0
search nodes set to 0.
White(1): noise 1
noise level set to 1.
White(1): go
end-game phase
              time surplus   0.00  time limit 166:39 (166:39)
              depth   time  score   variation (1)
                1     0.00  -0.70   1. Kf1
                1->   0.00  -0.70   1. Kf1
                2     0.00  -0.80   1. Kf1 Kc8
                2->   0.00  -0.80   1. Kf1 Kc8
                3     0.00  -0.90   1. Kf1 Kc8 2. Kg1
                3->   0.00  -0.90   1. Kf1 Kc8 2. Kg1
                4     0.00  -0.80   1. Kf1 Kc8 2. Kg1 Kb8
                4->   0.00  -0.80   1. Kf1 Kc8 2. Kg1 Kb8
                5     0.00     ++   1. Kf1!!
                5->   0.00  -0.41   1. Kf1 Kc8 2. Kg1 Kb8
                6     0.00     ++   1. Kf1!!
                6->   0.00  -0.02   1. Kf1 Kc8 2. Kg1 Kb8
                7     0.00   0.00   1. Kf1 Kc8 2. Kg1 Kb8
                7->   0.00   0.00   1. Kf1 Kc8 2. Kg1 Kb8
                8     0.00   0.00   1. Kf1 Kc8 2. Kg1 Kb8
                8->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
                9     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
                9->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               10     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               10->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               11     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               11->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               12     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               12->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               13     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               13->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               14     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               14->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               15     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               15->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               16     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               16->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               17     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               17->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               18     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               18->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               19     0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               19->   0.02   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               20     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               20->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               21     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               21->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               22     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               22->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               23     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               23->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               24     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               24->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               25     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               25->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               26     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               26->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               27     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               27->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               28     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               28->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               29     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               29->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               30     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               30->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               31     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               31->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               32     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               32->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               33     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               33->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               34     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               34->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               35     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               35->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               36     0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               36->   0.03   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               37     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               37->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               38     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               38->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               39     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               39->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               40     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               40->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               41     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               41->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               42     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               42->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               43     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               43->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               44     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               44->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               45     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               45->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               46     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               46->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               47     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               47->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               48     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               48->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               49     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               49->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               50     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               50->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               51     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               51->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               52     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               52->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               53     0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               53->   0.05   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               54     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               54->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               55     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               55->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               56     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               56->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               57     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               57->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               58     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               58->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               59     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               59->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               60     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               60->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               61     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               61->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               62     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               62->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               63     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               63->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               64     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               64->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               65     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               65->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               66     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               66->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               67     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               67->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               68     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               68->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               69     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               69->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               70     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               70->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               71     0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               71->   0.06   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               72     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               72->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               73     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               73->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               74     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               74->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               75     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               75->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               76     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               76->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               77     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               77->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               78     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               78->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               79     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               79->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               80     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               80->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               81     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               81->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               82     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               82->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               83     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               83->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               84     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               84->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               85     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               85->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               86     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               86->   0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               87     0.08   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               87->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               88     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               88->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               89     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               89->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               90     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               90->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               91     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               91->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               92     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               92->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               93     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               93->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               94     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               94->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               95     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               95->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               96     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               96->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               97     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               97->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               98     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               98->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               99     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               99->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               100     0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
               100->   0.09   0.00   1. Kf1 Kc8 2. Kg1 Kb8
              time=0.09  cpu=22%  mat=0  n=1712  fh=98%  nps=10k
              ext-> chk=0 cap=0 pp=0 1rep=0 mate=0
              predicted=0  nodes=1712  evals=25
              endgame tablebase-> probes done=0  successful=0
              SMP->  split=0  stop=0  data=0/32  cpu=0.02  elap=0.09



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Last modified: Thu, 15 Apr 21 08:11:13 -0700

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