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Subject: Re: WAC 100 -- Be3 is also a solution -- probably better than b6+

Author: Robert Hyatt

Date: 18:37:09 03/09/01

Go up one level in this thread


On March 09, 2001 at 18:04:02, Dann Corbit wrote:

>Ever had a problem with WAC 100?  Does your program stubbornly stick to Be3?
>
>For instance, here is Yace:


b6 is critical.  But Be3 is another way to play it, as after Be3 you
still must follow up with b6 to avoid letting black lock things up.  This
has been a known cook for many years.  Be3 _without_ a b6 is no good.




>
>title "WAC.100"
>Stored 4 learned positions into hash table
>solution  b6+
>usetime = 719.00, mintime = 719.00 maxtime = 719.00 tl 719.00 ml 0
>         6   0.000   0.80  1t  1.b6+ Bxb6 {0}
>         8   0.000   1.23  1t  1.Be1 Bxf4 {0}
>        11   0.000   2.78  1t  1.Bc1 {80}
>        17   0.001   2.78  1.  1.Bc1 {80}
>        30   0.001   2.58  2t  1.Bc1 Bb6 {80}
>        85   0.001   2.58  2.  1.Bc1 Bb6 {80}
>       130   0.001   2.63  3t  1.Bc1 Bb6 2.Bb2 {80}
>       272   0.001   2.63  3.  1.Bc1 Bb6 2.Bb2 {80}
>       350   0.002   2.83  4t  1.Bc1 Bb6 2.Bb2 Bc7 {80}
>       541   0.002   2.83  4.  1.Bc1 Bb6 2.Bb2 Bc7 {80}
>       698   0.002   2.70  5t  1.Bc1 Bb6 2.Bb2 Bc7 3.Ba3 {80}
>      1139   0.003   2.70  5.  1.Bc1 Bb6 2.Bb2 Bc7 3.Ba3 {80}
>      2946   0.006   2.78  6t  1.Bc1 Bd6 2.Be3 Be7 3.Ka5 Bd8+ 4.Ka4 {80}
>      3819   0.007   2.78  6.  1.Bc1 Bd6 2.Be3 Be7 3.Ka5 Bd8+ 4.Ka4 {80}
>      7446   0.012   2.76  7t  1.Bc1 Bb6 2.Ba3 Ka8 3.Bb2 Bc7 4.Bxf6 Bxf4 {80}
>     11430   0.022   2.77  7t+ 1.Be3 Ba5
>     12959   0.024   2.87  7t  1.Be3 Bb6 2.Kb3 Kb8 3.Bc1 Ba7 4.Kc3 {80}
>     13679   0.026   2.87  7.  1.Be3 Bb6 2.Kb3 Kb8 3.Bc1 Ba7 4.Kc3 {80}
>     21391   0.037   2.83  8t  1.Be3 Bd6 2.Bf2 Be7 3.Bg1 Bf8 4.Ka5 Bd6 {80}
>     25190   0.042   2.83  8.  1.Be3 Bd6 2.Bf2 Be7 3.Bg1 Bf8 4.Ka5 Bd6 {80}
>     38288   0.060   2.84  9t  1.Be3 Bd6 2.Kb3 Kb6 3.Bd2 Ka7 4.Kc3 Bc7 5.Be3
>                               {80}
>     43466   0.067   2.84  9.  1.Be3 Bd6 2.Kb3 Kb6 3.Bd2 Ka7 4.Kc3 Bc7 5.Be3
>                               {80}
>     65354   0.096   2.84 10t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bd2
>                               Bd6 {80}
>     75652   0.110   2.85 10t+ 1.Kb3 Bd6 2.Kc2 Bc7 3.Kd3 Kb6
>     88717   0.127   2.84 10t- 1.Kb3 Bd6 2.Kc2 Bc7 3.Kd3 Bb6 4.Bc3 Bc7 5.Ke3H
>                               Bd8H {80}
>     88717   0.127   2.84 10t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bd2
>                               Bd6 {80}
>     95449   0.137   2.84 10.  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bd2
>                               Bd6 {80}
>    116030   0.164   2.84 11t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bd2
>                               Bd6 6.Ke3 {80}
>    158899   0.219   2.84 11.  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bd2
>                               Bd6 6.Ke3 {80}
>    224493   0.307   2.87 12t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bd2
>                               Bd6 6.Ke3 Bc7 {80}
>    260883   0.353   2.87 12.  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bd2
>                               Bd6 6.Ke3 Bc7 {80}
>    289048   0.389   2.87 13t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bd2
>                               Bd6 6.Ke3 Bc7 7.Kd3 {80}
>    370637   0.500   2.87 13.  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bd2
>                               Bd6 6.Ke3 Bc7 7.Kd3 {80}
>    412035   0.552   2.87 14t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bb2 Bg7 {80}
>    527360   0.691   2.87 14.  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bb2 Bg7 {80}
>    599760   0.780   2.87 15t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bb2 Bg7 8.Kd3 {80}
>    850733   1.102   2.87 15.  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bb2 Bg7 8.Kd3 {80}
>   1166824   1.530   2.92 16t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bb2 Be7 8.Kd3 Bd8 {80}
>   1716986   2.243   2.92 16.  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bb2 Be7 8.Kd3 Bd8 {80}
>   1993889   2.596   2.92 17t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bb2 Be7 8.Kd3 Bd8 9.Ke3 {80}
>   3120785   4.056   2.92 17.  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bb2 Be7 8.Kd3 Bd8 9.Ke3 {80}
>   3829453   4.954   2.87 18t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bd2 Be7 8.Ba5 Bf8 9.Bc7 Bg7 {80}
>   5901543   7.891   2.87 18.  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Bf8 7.Bd2 Be7 8.Ba5 Bf8 9.Bc7 Bg7 {80}
>   7183510   9.672   2.87 19t  1.Be3 Bd6 2.Kb3 Kb6 3.Kc2 Ka7 4.Kd3 Be7 5.Bc1
>                               Bd6 6.Ke3 Be7 7.Kf3 Bd8 8.Bb2 Be7 9.Ba3 Bf8
>                               10.Bb2 {80}
>   8539783  11.608   2.88 19t+ 1.Kb3 Bd6 2.Kc2 Bc7
>   9596313  13.013   2.90 19t  1.Kb3 Bd6 2.Kc2 Bc7 3.Kd3 Bd6 4.Ke3 Bc7 5.Bc3
>                               Bd8 6.Kd3 Be7 7.Ke2H Bd8H {80}
>  12142876  16.647   2.90 19.  1.Kb3 Bd6 2.Kc2 Bc7 3.Kd3 Bd6 4.Ke3 Bc7 5.Bc3
>                               Bd8 6.Kd3 Be7 7.Ke2 Bd8 {80}
>  18340661  24.993   2.89 20t  1.Kb3 Bd6 2.Kc2 Bc7 3.Kd3 Bd6 4.Ke3 Bc7 5.Bc3
>                               Bd8 6.Kd3 Kb8 7.Bb2 Ka7 8.Ke3 Be7 9.Kf3 Bd8
>                               10.Ke2 Be7 11.Bc3H Bd8H 12.Kf3H {HT}
>  18636479  25.409   2.90 20t+ 1.Be3 Bd6 2.Bc1 Kb6 3.Bd2 Ka7 4.Be3 Kb6 5.Kb3H
>                               Ka7H 6.Kc2H Kb6H {HT}
>  22466876  30.877   3.30 20++ 1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Ka7 7.c5 Ba5
>  26921785  37.418   4.40 20t  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 Ka7 11.c7 Bxc7 12.Bxc7 Ka8 13.Kc5
>                               {350}
>  32361312  45.416   4.40 20.  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 Ka7 11.c7 Bxc7 12.Bxc7 Ka8 13.Kc5
>                               {350}
>  36482229  50.913   4.23 21t  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 Ka7 11.c7 Bxc7 12.Bxc7 Ka8 13.Kb6 f5
>                               {HT} {350}
>  45567619  1:03.9   4.23 21.  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 Ka7 11.c7 Bxc7 12.Bxc7 Ka8 13.Kb6 f5
>                               {HT} {350}
>  52328771  1:13.4   4.63 22++ 1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Ka7
>  67489726  1:33.3   5.41 22t  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 f5 11.c7 Bxc7 12.Bxc7 f4 13.Bxf4 Ka7
>                               14.Be3+ Kb8 {430}
>  85959854  1:58.8   5.41 22.  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 f5 11.c7 Bxc7 12.Bxc7 f4 13.Bxf4 Ka7
>                               14.Be3+ Kb8 {430}
> 111595971  2:33.5   5.47 23t  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 f5 11.c7 Bxc7 12.Bxc7 Ka7 13.Bg3 f4
>                               14.Bxf4 Ka8 {HT} {430}
> 146009562  3:20.4   5.47 23.  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 f5 11.c7 Bxc7 12.Bxc7 Ka7 13.Bg3 f4
>                               14.Bxf4 Ka8 {HT} {430}
> 188090711  4:15.7   5.41 24t  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 f5 11.c7 Bxc7 12.Bxc7 Ka7 13.Bg3 f4
>                               14.Bxf4 Ka8 15.Be3 Kb8 {430}
> 245154569  5:32.1   5.41 24.  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 f5 11.c7 Bxc7 12.Bxc7 Ka7 13.Bg3 f4
>                               14.Bxf4 Ka8 15.Be3 Kb8 {430}
> 301932061  6:48.7   5.45 25t  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 f5 11.c7 Bxc7 12.Bxc7 Ka7 13.Bg3 Ka8
>                               14.Bh2 f4 15.Bxf4 Ka7 16.Be3+ Ka8 {HT} {430}
> 379567981  8:38.4   5.45 25.  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Be7 Bxf4 7.c5 Bc7 8.Bd6 Bd8 9.c6
>                               f4 10.Bxf4 f5 11.c7 Bxc7 12.Bxc7 Ka7 13.Bg3 Ka8
>                               14.Bh2 f4 15.Bxf4 Ka7 16.Be3+ Ka8 {HT} {430}
> 514415273 11:41.9   5.50 26t  1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Bb6 Bxf4 7.c5 Be5 8.c6 f4 9.c7
>                               Bxc7 10.Bxc7 f3 11.Bb6 f2 12.Bxf2 Kb8 13.Kc6 f5
>                               14.Kd5 f4 15.Bc5 f3 16.Ke4 f2 17.Bxf2 Kc8 18.a7
>                               Kb7 {430}
> 527049526 11:58.9   5.50 26u. 1.Be3 Bd6 2.Ka5 Bc7+ 3.b6+ Bxb6+ 4.Kb5 Bc7
>                               5.Bxc5+ Ka8 6.Bb6 Bxf4 7.c5 Be5 8.c6 f4 9.c7
>                               Bxc7 10.Bxc7 f3 11.Bb6 f2 12.Bxf2 Kb8 13.Kc6 f5
>                               14.Kd5 f4 15.Bc5 f3 16.Ke4 f2 17.Bxf2 Kc8 18.a7
>                               Kb7 {430}
>527049526 Nodes, 8.84% Leavenodes, 733039 Nodes/sec
>167832084 eval, 70.80% score, 1778685184 genmoves, 3.27% captures le 524/463
>ext: pawn 10757117, rcp 3017040, chk 12969818, repchk 1189608, null 52834, prune
>938658
>htable: 293127047 store, 0 rejected, 525255527 probe, 60.1% f/p, 107.7% f/s
>entries 3333333 age 0 renew 0
>egtb probes 0, found 0
>solution not found
>
>Well, don't fix it.  It's probably not broken.  Consider crafty going wild on a
>fail high on Be3 that hammered its little CPU noggin for an hour.  Probably
>spotted a checkmate.  It takes a pretty massive fail-high to hang that long:
>
>EPD Kit revision date: 1996.04.21
>unable to open book file [e:\crafty\release/book.bin].
>book is disabled
>unable to open book file [e:\crafty\release/books.bin].
>hash table memory = 24M bytes.
>pawn hash table memory = 2.5M bytes.
>EGTB cache memory = 2M bytes.
>draw score set to    0.00 pawns.
>book file enabled.
>choose from book moves randomly (using weights.)
>choose from 5 best moves.
>book learning enabled
>result learning enabled
>position learning enabled
>threshold set to 9 pawns.
>4 piece tablebase files found
>89kb of RAM used for TB indices and decompression tables
>
>Crafty v18.4
>
>White(1): st 3600
>search time set to 3600.00.
>White(1): test rh.ci
>======================================================================
>! "WAC.100"                                                          !
>======================================================================
>solution 1. b6+
>end-game phase
>              time surplus   0.00  time limit 60:00 (60:00)
>         nss  depth   time  score   variation (1)
>               11     0.18   4.10   1. Be3 Bd6 2. Bf2 Kb6 3. Kb3 Bb8 4.
>                                    Bg3 Bc7 5. Kc3 Bd6 6. Kd3
>               11->   0.24   4.10   1. Be3 Bd6 2. Bf2 Kb6 3. Kb3 Bb8 4.
>                                    Bg3 Bc7 5. Kc3 Bd6 6. Kd3
>               12     0.30   3.91   1. Be3 Bd6 2. Kb3 Kb6 3. Kc3 Bb8 4.
>                                    Kd3 Ba7 5. Bd2 Bb8 6. Ke3 Ba7
>               12     0.48   4.21   1. Kb3 Bb6 2. Kc3 Bc7 3. Kd3 Bd6 4.
>                                    Ke3 Bf8 5. Bc3 Be7 6. Ba5 Bd6
>               12->   0.56   4.21   1. Kb3 Bb6 2. Kc3 Bc7 3. Kd3 Bd6 4.
>                                    Ke3 Bf8 5. Bc3 Be7 6. Ba5 Bd6
>               13     0.64   4.26   1. Kb3 Bb6 2. Kc3 Bc7 3. Kd3 Bd6 4.
>                                    Ke3 Bf8 5. Bc3 Be7 6. Bb2 Kb6 7. Bc3
>               13->   0.90   4.26   1. Kb3 Bb6 2. Kc3 Bc7 3. Kd3 Bd6 4.
>                                    Ke3 Bf8 5. Bc3 Be7 6. Bb2 Kb6 7. Bc3
>               14     1.16   4.21   1. Kb3 Bb6 2. Kc3 Bc7 3. Kd3 Bd6 4.
>                                    Ke3 Bf8 5. Be1 Bd6 6. Ba5 Bb8 7. Bc3
>                                    Bd6
>               14->   1.94   4.21   1. Kb3 Bb6 2. Kc3 Bc7 3. Kd3 Bd6 4.
>                                    Ke3 Bf8 5. Be1 Bd6 6. Ba5 Bb8 7. Bc3
>                                    Bd6
>               15     2.26   4.24   1. Kb3 Bb6 2. Kc3 Bc7 3. Kd3 Bd6 4.
>                                    Ke3 Bc7 5. Bc3 Bd8 6. Kf2 Bc7 7. Kg3
>                                    Bd8 8. Kf3
>               15->   3.58   4.24   1. Kb3 Bb6 2. Kc3 Bc7 3. Kd3 Bd6 4.
>                                    Ke3 Bc7 5. Bc3 Bd8 6. Kf2 Bc7 7. Kg3
>                                    Bd8 8. Kf3
>               16     4.78   4.21   1. Kb3 Bb6 2. Kc3 Bc7 3. Kd3 Bd6 4.
>                                    Ke3 Bc7 5. Bc1 Bb6 6. Bb2 Bd8 7. Bc3
>                                    Be7 8. Ba5 Bd6
>               16     8.97   4.37   1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Ka8 4.
>                                    Kxc5 Ka7 5. Kc6+ Ka8 6. Kd7 Ba5 7.
>                                    Ke6 Bc3 8. Kxf5 Kb8 9. a7+ Ka8 10.
>                                    Bb6
>               16->   9.55   4.37   1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Ka8 4.
>                                    Kxc5 Ka7 5. Kc6+ Ka8 6. Kd7 Ba5 7.
>                                    Ke6 Bc3 8. Kxf5 Kb8 9. a7+ Ka8 10.
>                                    Bb6
>               17    11.05   4.48   1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Ka8 4.
>                                    Kxc5 Ka7 5. Kc6+ Ka8 6. Kd7 Ba5 7.
>                                    Ke6 Be1 8. Kxf6 Bxh4+ 9. Kxf5 Bg3 10.
>                                    Ke6 h4
>               17->  23.08   4.48   1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Ka8 4.
>                                    Kxc5 Ka7 5. Kc6+ Ka8 6. Kd7 Ba5 7.
>                                    Ke6 Be1 8. Kxf6 Bxh4+ 9. Kxf5 Bg3 10.
>                                    Ke6 h4
>               18    24.55   4.62   1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Ka8 4.
>                                    Kxc5 Ka7 5. Kc6+ Ka8 6. Kd7 Ba5 7.
>                                    Ke6 Bd8 8. Kxf5 Kb8 9. Ke6 Ka8 10.
>                                    f5 Kb8
>               18->  48.03   4.62   1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Ka8 4.
>                                    Kxc5 Ka7 5. Kc6+ Ka8 6. Kd7 Ba5 7.
>                                    Ke6 Bd8 8. Kxf5 Kb8 9. Ke6 Ka8 10.
>                                    f5 Kb8
>               19    50.99   5.01   1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Ka8 4.
>                                    Kxc5 Ka7 5. Kc6+ Ka8 6. Kd7 Ba5 7.
>                                    Ke6 Kb8 8. Kxf6 Bd8+ 9. Kxf5 Bxh4 10.
>                                    a7+ Ka8 11. Ke6 Bg3 12. f5
>               19->   1:51   5.01   1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Ka8 4.
>                                    Kxc5 Ka7 5. Kc6+ Ka8 6. Kd7 Ba5 7.
>                                    Ke6 Kb8 8. Kxf6 Bd8+ 9. Kxf5 Bxh4 10.
>                                    a7+ Ka8 11. Ke6 Bg3 12. f5
>               20     1:57   5.10   1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Ka8 4.
>                                    Kxc5 Ka7 5. Kc6+ Ka8 6. Kd7 Bb8 7.
>                                    Ke6 Ba7 8. Bxa7 Kxa7 9. c5 Kxa6 10.
>                                    c6 Kb6 11. Kd6 Ka6
>               20     4:47     ++   1. Be3!!
>              time=60:00  cpu=99%  mat=1  n=2422136780  fh=13%  nps=672752
>              ext-> chk=448093718 pp=9465710 1rep=60100812 mate=70919
>              predicted=0  nodes=2422136780  evals=29463648
>              endgame tablebase-> probes done=31  successful=31
>----------------------> solution incorrect (0/1).
>
>
>
>test results summary:
>
>total positions searched..........           1
>number right......................           0
>number wrong......................           1
>percentage right..................           0
>percentage wrong..................         100
>total nodes searched..............2422136780.0
>average search depth..............        20.0
>nodes per second..................      672752
>White(1):



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