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Subject: Re: Pawn endgame, solution correct?

Author: Dann Corbit

Date: 08:48:40 10/15/01

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On October 15, 2001 at 10:22:09, Rafael Andrist wrote:

>[D]8/2p5/1pP3k1/1P3p2/8/5pP1/5P2/3K4 w - - bm Kc2; id "APE.704"; c0 "M. Sinar,
>1983";
>
>According to M. Sinar, White wins with Kc2. But after analyzing the position
>with chess programs (without TBs), I could not find a winning line. The score
>swaps between +2 and 0. What do other programs say?

Yace Analysis:

 white ( 1): st 999
white ( 1): test ape.ci
title "APE.704"
Stored 8 learned positions into hash table
solution  Kc2
usetime = 998.00, mintime = 998.00 maxtime = 998.00 tl 998.00 ml 0
         1   0.001   0.87  1t  1.Kd2 {0}
         5   0.001   0.87  1.  1.Kd2 {0}
        15   0.002   0.72  2t  1.Kd2 Kf6 {0}
        23   0.002   0.72  2.  1.Kd2 Kf6 {0}
        48   0.002   0.86  3t  1.Kd2 Kf6 2.Ke3 {0}
        79   0.003   0.86  3.  1.Kd2 Kf6 2.Ke3 {0}
       242   0.003   0.81  4t  1.Kd2 Kg5 2.Ke3 Kg4 {0}
       294   0.004   0.81  4.  1.Kd2 Kg5 2.Ke3 Kg4 {0}
       468   0.004   0.91  5t  1.Kd2 Kg5 2.Ke3 Kg4 3.Kd4 {0}
       705   0.005   0.91  5.  1.Kd2 Kg5 2.Ke3 Kg4 3.Kd4 {0}
      1204   0.006   0.84  6t  1.Kd2 Kg5 2.Ke3 Kg4 3.Kd4 f4 {0}
      1797   0.007   0.84  6.  1.Kd2 Kg5 2.Ke3 Kg4 3.Kd4 f4 {0}
      2208   0.008   0.41  7-- 1.Kd2 Kg5 2.Kd1 Kg4 3.Ke1 f4 4.Kf1 {0}
      3753   0.010   0.22  7t  1.Kd2 Kh5 2.Ke3 Kg4 3.Kd4H f4H 4.gxf4H Kxf4H {0}
      4914   0.013   0.27  7t+ 1.Kc2 Kg5 2.Kd3 f4 3.gxf4+H Kxf4H 4.Kd4H Kf5H
                               5.Kd5H Kf4H {0}
      4961   0.015   0.27  7t  1.Kc2 Kg5 2.Kd3 f4H 3.gxf4+H Kxf4H 4.Kd4H Kf5H
                               5.Kd5H Kf4H {0}
      5149   0.016   0.27  7.  1.Kc2 Kg5 2.Kd3 f4 3.gxf4+ Kxf4 4.Kd4 Kf5 5.Kd5
                               Kf4 {0}
      6696   0.019   0.27  8t  1.Kc2 Kh5 2.Kd2 Kg5 3.Kd3 f4H 4.gxf4+H Kxf4H
                               5.Kd4H Kg5H 6.Ke3H Kh6H 7.Ke4H Kh7H {0}
      8629   0.022   0.27  8.  1.Kc2 Kh5 2.Kd2 Kg5 3.Kd3 f4 4.gxf4+ Kxf4 5.Kd4
                               Kg5 6.Ke3 Kh6 7.Ke4 Kh7 {0}
     13648   0.031   0.41  9t  1.Kc2 Kf6 2.Kc3 Ke5 3.Kc4 Ke4 4.Kb3 Kd4 5.Kb4
                               {0}
     17238   0.037   0.42  9t+ 1.Kd2 Kg5 2.Kd3 Kg4 3.Ke3H Kg5H 4.Kxf3H Kh5H
                               5.g4+H fxg4+H 6.Kf4H Kh6H 7.f3H Kg6H {0}
     18391   0.040   0.53  9t  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3H Kd5H 4.Kf4H Kc5H
                               5.Kxf5H Kxb5H 6.f4H {80}
     18737   0.041   0.53  9.  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.f4 {80}
     30860   0.060   0.68 10t  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7H 8.g6H Ke7H {0}
     31712   0.062   0.68 10.  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.g6 Ke7 {0}
     56282   0.098   0.66 11t  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.g6 Ke7 9.f4 c5 {0}
     57374   0.101   0.66 11.  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.g6 Ke7 9.f4 c5 {0}
     77544   0.132   0.24 12-- 1.Kd2 Kh5 2.Kc3 Kg4 3.Kd4 f4 4.gxf4 Kxf4 5.Kc3
                               Kf5 6.Kd3 Ke5 7.Kc4H Ke4H 8.Kc3H Ke5H 9.Kc2H
                               Kd5H 10.Kb3H Kc5H 11.Ka4H Kd5H 12.Kb3H Kc5H
                               13.Ka4H Kd5H 14.Kb3HR {0}
     86183   0.147   0.24 12t  1.Kd2 Kh5 2.Kd3H Kg5H 3.Kd4H Kh5H 4.Kc4H Kg4H
                               5.Kd5H Kg5H 6.Kc4H f4H 7.gxf4+H Kxf4H 8.Kd4H
                               Kf5H 9.Kd5H Kf6H 10.Ke4H Ke6H 11.Kf4H Kd6H
                               12.Ke4H Kc5H {0}
    104926   0.174   0.25 12t+ 1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd5 4.Kxf3 Kc5 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.g4 b5 8.Ke5 b4 9.g5 Kd7
                               10.Kd4 {0}
    124179   0.202   0.53 12t  1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd6 4.Kxf3 Kc5 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.g4 b5H 8.g5H b4H 9.g6H b3H
                               10.f4H {0}
    126151   0.206   0.53 12.  1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd6 4.Kxf3 Kc5 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.g4 b5 8.g5 b4 9.g6 b3 10.f4
                               {0}
    173300   0.275   0.26 13t  1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd6 4.Kxf3 Kc5 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.Ke6 b5 8.f4 b4 9.f5H b3H
                               10.f6H b2H 11.f7H b1=QH 12.f8=QH {0}
    185902   0.295   0.27 13t+ 1.Kd2 Kf6 2.Ke3 Kg5 3.Kxf3 Kh5 4.Ke3 Kg5 5.f3
                               Kf6 6.f4 Ke6 7.Kd4 Ke7 8.g4 fxg4 {0}
    191792   0.305   0.94 13++ 1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.Kf6 Kc6 9.f4 Kd6
                               10.f5 c5H {0}
    220704   0.352   1.57 13t  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.Kf6 Ke8 9.g6 Kf8
                               10.g7+H Kg8H 11.f4H {0}
    221000   0.353   1.57 13.  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.Kf6 Ke8 9.g6 Kf8
                               10.g7+ Kg8 11.f4 {0}
    332688   0.512   1.24 14t  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.Kf6 Ke8 9.g6 Kf8
                               10.g7+ Kg8 11.f4 c5 {0}
    334949   0.517   1.24 14.  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.Kf6 Ke8 9.g6 Kf8
                               10.g7+ Kg8 11.f4 c5 {0}
    502095   0.763   0.92 15t  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.g6 Ke7 9.f4 c5H
                               10.Ke4H b5H 11.f5H Kf6H {0}
    505113   0.769   0.92 15.  1.Kd2 Kf6 2.Ke3 Ke5 3.Kxf3 Kd5 4.Kf4 Kc5 5.Kxf5
                               Kxb5 6.g4 Kxc6 7.g5 Kd7 8.g6 Ke7 9.f4 c5 10.Ke4
                               b5 11.f5 Kf6 {0}
    688385   1.037   0.52 16-- 1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.Kb7
    719002   1.087   0.33 16t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kf4 12.Qd4+ Kf3 13.Kc5 {0}
    837182   1.256   0.34 16t+ 1.Kc2 f4 2.Kd3 fxg3 3.fxg3 f2 4.Ke2 Kf7 5.Kxf2
                               Kg8 6.Kg2 Kf7 7.g4 Ke8 8.Kh2 Kf8 9.g5 Kg8 10.g6
                               Kg7 11.Kg2 Kxg6 {0}
    946768   1.417   0.56 16t  1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd6 4.Kxf3 Kc5 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.g4 b5 8.g5 b4 9.Ke4 Kd7
                               10.g6 b3 11.Kd3H Ke7H 12.g7H Kf7H {0}
    957384   1.436   0.56 16.  1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd6 4.Kxf3 Kc5 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.g4 b5 8.g5 b4 9.Ke4 Kd7
                               10.g6 b3 11.Kd3 Ke7 12.g7 Kf7 {0}
   1281657   1.901   0.20 17t  1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd6 4.Kxf3 Kc5 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.Ke5 b5 8.g4 b4H 9.Kd4H Kd7H
                               10.Kc4H c5H 11.g5H Ke7H 12.g6H Kf6H 13.Kxc5H
                               {80}
   1359810   2.017   0.21 17t+ 1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kf2 12.Qd4+ Ke2
   1459395   2.175   0.22 17t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5H 4.Ke5H Kg4H
                               5.Ke6H Kh3H 6.Kd7H Kg2H 7.Kxc7H Kxf2H 8.Kxb6H
                               Kxg3H 9.c7H f2H 10.c8=QH f1=QH 11.Qc3+H Kg4H
                               12.Kc6H Qg2+H 13.Kc5H f4H {0}
   1469701   2.194   0.22 17.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg4 12.Kc6 Qg2+ 13.Kc5 f4
                               {0}
   1768660   2.633   0.33 18t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg4 12.Kc6 Qh1+ 13.Kc5 f4
                               14.b6 {0}
   1877840   2.792   0.34 18t+ 1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd6 4.Kxf3 Kc5 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.Ke5 b5 8.g4 b4 9.Kd4 Kb5
                               10.g5 Kb6 11.Ke3 c5 12.g6 b3 13.f4 {0}
   2386674   3.558   0.51 18t  1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd5 4.Kxf3 Kc4 5.Kf4
                               Kxb5 6.Kxf5H Kxc6H 7.Ke5H b5H 8.g4H Kc5H 9.g5H
                               b4H 10.g6H b3H 11.g7H b2H 12.g8=QH b1=QH
                               13.Qd5+H Kb6H 14.f4H {0}
   2398032   3.579   0.51 18.  1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd5 4.Kxf3 Kc4 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.Ke5 b5 8.g4 Kc5 9.g5 b4
                               10.g6 b3 11.g7 b2 12.g8=Q b1=Q 13.Qd5+ Kb6
                               14.f4 {0}
   3036627   4.560   0.11 19-- 1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd5 4.Kxf3 Kc4 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.Ke5 b5 8.g4 b4 9.g5 b3 10.g6
                               b2 11.g7 b1=Q 12.g8=Q Qb2+ 13.Ke6 Qxf2 14.Ke5
                               {-80}
   3909686   5.922   0.02 19t  1.Kc2 Kf6 2.Kd3 Ke5 3.Ke3 Kd5 4.Kxf3 Kc4 5.Kf4
                               Kxb5 6.Kxf5 Kxc6 7.g4 b5 8.g5 b4 9.Ke4 Kd6
                               10.f4 c5 11.g6 Ke6 12.f5+H Kf6H 13.Kd5H b3H
                               14.Kxc5H {80}
   4085281   6.185   0.03 19t+ 1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kf4
   4518732   6.887   0.27 19t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg2 12.Kc6 f4 13.b6 f3
                               14.b7 Qa6+H 15.Kc7H {0}
   4537635   6.918   0.27 19.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg2 12.Kc6 f4 13.b6 f3
                               14.b7 Qa6+ 15.Kc7 {0}
   5468374   8.703   0.34 20t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg2 12.Qc6+ Kf2 13.Kc7 {HT}
   6196936  10.011   0.34 20.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg2 12.Qc6+ Kf2 13.Kc7
   8020746  13.292   0.31 21t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg2 12.Kc5 Qf2+ 13.Kc6 f4
                               14.b6H f3H 15.b7H Qa7H 16.Qe1H {0}
   9297778  15.474   0.31 21.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg2 12.Kc5 Qf2+ 13.Kc6 f4
                               14.b6 f3 15.b7 Qa7 16.Qe1 {0}
  12655931  22.700   0.37 22t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg4 12.Kc5 f4 13.b6 f3
                               14.Qg7+ Kh3 15.Qh7+ Kg2 16.b7H Qc1+H 17.Kd6H {0}
  14698034  26.611   0.37 22.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kg4 12.Kc5 f4 13.b6 f3
                               14.Qg7+ Kh3 15.Qh7+ Kg2 16.b7 Qc1+ 17.Kd6 {0}
  23190908  42.418   0.29 23t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kh2 12.Ka5 f4 13.b6 Qf2
                               14.Qc7 Qd2+H 15.Kb5H Qd3+H 16.Kc5H Kg3H {0}
  26427009  48.991   0.29 23.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Kh2 12.Ka5 f4 13.b6 Qf2
                               14.Qc7 Qd2+ 15.Kb5 Qd3+ 16.Kc5 Kg3 {0}
  48375647  1:30.9   0.23 24t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qg8+ Kf4 12.Qd5 Qa1 13.Kb7 Qg7+
                               14.Kc6 Qc3+H 15.Kd6H Qb4+H 16.Kd7H Ke3H
                               17.Qxf5H Ke2H {80}
  53425774  1:41.2   0.23 24.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qg8+ Kf4 12.Qd5 Qa1 13.Kb7 Qg7+
                               14.Kc6 Qc3+ 15.Kd6 Qb4+ 16.Kd7 Ke3 17.Qxf5 Ke2
                               {80}
  82988393  2:41.3   0.20 25t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qg8+ Kf2 12.Kc5 Qa1 13.b6 Qa5+
                               14.Kc6 Qc3+ 15.Kb5 Qe5+ 16.Ka6 Qd6 17.Qa2+ {HT}
                               {0}
  90497379  2:59.1   0.20 25.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qg8+ Kf2 12.Kc5 Qa1 13.b6 Qa5+
                               14.Kc6 Qc3+ 15.Kb5 Qe5+ 16.Ka6 Qd6 17.Qa2+ {HT}
                               {0}
 141086139  4:45.6   0.20 26t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qg8+ Kf2 12.Kc5 Qa1 13.b6 Qa5+
                               14.Kc6 Qc3+ 15.Kb5 Qe5+ 16.Ka6 Qa1+ 17.Kb7 f4
                               {HT}
 153043834  5:12.3   0.20 26.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qg8+ Kf2 12.Kc5 Qa1 13.b6 Qa5+
                               14.Kc6 Qc3+ 15.Kb5 Qe5+ 16.Ka6 Qa1+ 17.Kb7 f4
 325484405 11:12.7   0.16 27t  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Qf3 12.Qg7+ Kh3 13.Qh6+
                               Kg2 14.Qg6+ Qg4 15.Qc6+ Kf1 16.Kc7 Qg7+ 17.Kd6
                               Qd4+ 18.Qd5H {0}
 351435706 12:14.8   0.16 27.  1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Qf3 12.Qg7+ Kh3 13.Qh6+
                               Kg2 14.Qg6+ Qg4 15.Qc6+ Kf1 16.Kc7 Qg7+ 17.Kd6
                               Qd4+ 18.Qd5 {0}
 482847552 16:37.9   0.16 27f. 1.Kd2 Kg5 2.Kd3 Kh5 3.Kd4 Kg5 4.Ke5 Kg4 5.Ke6
                               Kh3 6.Kd7 Kg2 7.Kxc7 Kxf2 8.Kxb6 Kxg3 9.c7 f2
                               10.c8=Q f1=Q 11.Qc3+ Qf3 12.Qg7+ Kh3 13.Qh6+
                               Kg2 14.Qg6+ Qg4 15.Qc6+ Kf1 16.Kc7 Qg7+ 17.Kd6
                               Qd4+ 18.Qd5 {0}
482847552 Nodes, 5.52% Leavenodes, 483819 Nodes/sec
159388384 eval, 96.13% score, 3468291099 genmoves, 0.90% captures le 657/255
ext: pawn 5057076, rcp 31086, chk 1045, repchk 21557, null 38298, prune 16822996

htable: 229236651 store, 0 rejected, 482465807 probe, 71.7% f/p, 150.9% f/s
entries 24999999 age 0 renew 0
egtb probes 32410, found 32410 max_depth 52
solution not found
  1 tested,   0 found,   0 mates
482847552 nodes, 26654361 leavenodes in 999.74 sec 482974 n/s
test nodes 482847552 win nodes 0 mate nodes 0
win time 0.00 mate time 0.00 av depth 27.000 (nm 27.000) maxdepth 52, tu 998
log(win_nodes) = 0.00000 log(win_time) = 0.00000
white ( 1):



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

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