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Subject: Re: Endgame test position

Author: Dann Corbit

Date: 10:26:07 05/15/02

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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

Quark:

testsuite \rxe7 120
position 1
 4     81       1       2918  g8f8 e7g6 f8g8 g6e7 g8h7 h3g4
 5     83       3      10072  g8h8 c7b7 g7c3 e7d5 c3d2
 5     83       3      11197  g8h8 c7b7 g7c3 e7d5 c3d2
 6     55       6      20792  g8h8 c7b7 g7f6 e7d5 f6c3 d5c3
 6     55       7      24466  g8h8 c7b7 g7f6 e7d5 f6c3 d5c3
 7     25      10      36866  g8h8?
 7      8      15      56202  g8h8 c7b7 e8a8 e7c6 a8a6 c6b4 a5b4
 7      8      16      64475  g8h8 c7b7 e8a8 e7c6 a8a6 c6b4 a5b4
 8      8      28     114477  g8h8 c7b7 e8a8 e7c6 a8a6 c6b4 a5b4 b7b4
 8      8      31     126092  g8h8 c7b7 e8a8 e7c6 a8a6 c6b4 a5b4 b7b4
 9     17      82     342888  g8h8 c7b7 a5a4 b7b4 e8e7 b4a4 h8h7 a4a8 h7g6
 9     17      85     360892  g8h8 c7b7 a5a4 b7b4 e8e7 b4a4 h8h7 a4a8 h7g6
10      8     138     590831  g8h8 c7b7 a5a4 b7b4 e8e7 b4a4 e7e2 a4b4 h8h7 b4b7
10      8     161     701425  g8h8 c7b7 a5a4 b7b4 e8e7 b4a4 e7e2 a4b4 h8h7 b4b7
11     15     295    1301802  g8h8 c7b7 a5a4 b7b4 e8e7 b4a4 e7e2 a4a8 h8h7 g3g4
g7e5 a8a7 h7g6
11     16     347    1534433  e8e7!
11    116     421    1881399  e8e7!!
11    102     429    1927475  e8e7 c7e7 b4b3 h3g4 b3b2 e7b7 g8h7 b7b3 a5a4 b3b7
h7g6 b7b6 g7f6 h2h3
11    102     435    1956580  e8e7 c7e7 b4b3 h3g4 b3b2 e7b7 g8h7 b7b3 a5a4 b3b7
h7g6 b7b6 g7f6 h2h3
12    118     517    2329655  e8e7 c7e7 b4b3 h3g4 b3b2 e7b7 a5a4 b7b8 g8f7 b8b7
f7e6 b7b6 e6d7 h2h4 a4a3 h4h5
12    118     546    2466993  e8e7 c7e7 b4b3 h3g4 b3b2 e7b7 a5a4 b7b8 g8f7 b8b7
f7e6 b7b6 e6d7 h2h4 a4a3 h4h5
13    148     825    3935713  e8e7!
13    248     878    4270903  e8e7!!
13    268     948    4691990  e8e7 c7e7 b4b3 g3g4 b3b2 e7e8 g8h7 e8e1 a5a4 g4g5
a4a3 g5g6 h7g6 e1g1 g6h6 g1f1 g7f8
13    268    1002    4955858  e8e7 c7e7 b4b3 g3g4 b3b2 e7e8 g8h7 e8e1 a5a4 g4g5
a4a3 g5g6 h7g6 e1g1 g6h6 g1f1 g7f8
14    298    1372    6904652  e8e7!
14    398    1605    8316277  e8e7!!
14    535    3356   16678895  e8e7 c7e7 b4b3 g3g4 b3b2 e7e1 a5a4 e1e8 g8h7 e8b8
a4a3 b8a8 b2b1q a8a3 b1f1 h3h4 g7d4
14    535    3403   16915486  e8e7 c7e7 b4b3 g3g4 b3b2 e7e1 a5a4 e1e8 g8h7 e8b8
a4a3 b8a8 b2b1q a8a3 b1f1 h3h4 g7d4
15    547    6920   33024267  e8e7 c7e7 b4b3 h3g2 b3b2 e7e8 g8h7 e8b8 a5a4 g2h3
a4a3
15    547    7004   33465738  e8e7 c7e7 b4b3 h3g2 b3b2 e7e8 g8h7 e8b8 a5a4 g2h3
a4a3




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