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Subject: Re: Endgame test position

Author: Dann Corbit

Date: 10:22:30 05/15/02

Go up one level in this thread


On May 15, 2002 at 07:46:27, Andrew Williams wrote:

>How long does it take your program to see Rxe7! here?
>
>[D]4r1k1/2R1N1b1/8/p7/1p6/6PK/7P/8 b - - bm Rxe7

Pharaon has trouble with it:

test \rxe7.epd 120

Looking for Re8xe7

8   -   - r - k -
7 -   R   N   b
6   -   -   -   -
5 p   -   -   -
4   p   -   -   -
3 -   -   -   P K
2   -   -   -   P
1 -   -   -   -
  a b c d e f g h
4r1k1/2R1N1b1/8/p7/1p6/6PK/7P/8 b - -
 6.     22    0     7745  Kh8 Nf5 Be5 Ra7 Rf8 Kg4
 6->    22    0     8965  Kh8 Nf5 Be5 Ra7 Rf8 Kg4
 7.     27    0    43663  Kh8 Nc6 Ra8 Rb7 Ra6 Nxa5 Rxa5
 7->    27    0    46673  Kh8 Nc6 Ra8 Rb7 Ra6 Nxa5 Rxa5
 8.     32    1   175864  Kh8 Rb7 a4 Rxb4 Rxe7 Rxa4 Re2 Ra7
 8->    32    1   181614  Kh8 Rb7 a4 Rxb4 Rxe7 Rxa4 Re2 Ra7
 9.     36    1   284580  Kh8 Rb7 a4 Rxb4 Rxe7 Rh4 Kg8 Rxa4 Re2 Ra7
 9->    36    1   303624  Kh8 Rb7 a4 Rxb4 Rxe7 Rh4 Kg8 Rxa4 Re2 Ra7
10.      0    3   656231  Kh8 Rb7 Ra8 Ng6 Kh7 Ne7 Kh8 Ng6
10->     0    4   719632  Kh8 Rb7 Ra8 Ng6 Kh7 Ne7 Kh8 Ng6
11.      0    5   934092  Kh8 Rb7 Ra8 Ng6 Kh7 Ne7 Kh8 Ng6
11->     0    6  1040889  Kh8 Rb7 Ra8 Ng6 Kh7 Ne7 Kh8 Ng6
12.     41   17  3329280  Kh8 Rb7 a4 Rxb4 Rxe7 Rxa4 Re2 Rh4 Kg8 Kg4 Kf7 h3 Bd4
12->    41   18  3497919  Kh8 Rb7 a4 Rxb4 Rxe7 Rxa4 Re2 Rh4 Kg8 Kg4 Kf7 h3 Bd4
13.     37   34  6715553  Kh8 Rb7 a4 Rxb4 Rxe7 Rxa4 Re2 Rh4 Kg8 Kg4 Bd4 h3
                          Kf7 Kf5
13->    37   36  6984816  Kh8 Rb7 a4 Rxb4 Rxe7 Rxa4 Re2 Rh4 Kg8 Kg4 Bd4 h3
                          Kf7 Kf5
14.         120 22945934  Kh8 Rb7 Rxe7
 time:120.01s, nodes:22944403, nps:191201, evals:5420368 (23.6%)
 HT Fill:100.0%, HT Hit:9.40%, HT Refut:6.1%, HP Hit:99.99%, TB: 10135
Rank#04 :
14<=    37  120 22945934  Rxe7 Rxe7 Bf8 Re2 a4
Not found 1: Kh8 played instead of Re8xe7
 0/1 solved positions in '\rxe7.epd'
The log file 'log/rxe7.epd.001' has been created.



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