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Subject: Re: Endgame test position

Author: Dann Corbit

Date: 09:26:42 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
>
>The game was played at home on my Athlon 1200, but on the Intel PIII-933 here at
>work, it takes postmodernist 25 seconds to see the move.

Phalanx:

4r1k1/2R1N1b1/8/p7/1p6/6PK/7P/8 b - - bm Rxe7
    -> soft time limit 100 s
    -> hard time limit 600 s
  6     45    63    99298  Kg8-h8  Rc7-b7  Pa5-a4  Rb7xb4
  6 ->   0:00.70   111722   0 turns
  7     70   142   234235  Kg8-h8  Rc7-b7  Pa5-a4  Rb7xb4  Re8xe7  Rb4xa4
                           Kh8-h7
  7 ->   0:01.75   294335   0 turns
  8     34   452   867064  Kg8-h8  Rc7-b7  Bg7-f6  Ne7-c6  Re8-a8  Kh3-g4
                           Ra8-a6  Nc6xa5  Ra6xa5  Rb7xb4  Ra5-g5  Kg4-h4
  8     39   717  1442561  Re8xe7  !
  8     74   944  1947429  Re8xe7  Rc7xe7  Pb4-b3  Re7-b7  Pa5-a4  Kh3-g4
  8 ->   0:09.52  1963331   1 turn
  9    133  1321  2766332  Re8xe7  Rc7xe7  Pb4-b3  Re7-e8  Kg8-h7
  9 ->   0:14.27  2985250   0 turns
 10    169  2259  4804101  Re8xe7  Rc7xe7  Pb4-b3  Re7-e8  Kg8-h7  Re8-b8
                           Pb3-b2  Rb8-b5
 10 ->   0:25.73  5372816   0 turns
 11    229  3875  8170819  Re8xe7  !!
 11    341  5378 11518208  Re8xe7  Rc7xe7  Pb4-b3  Re7-e8  Kg8-h7  Re8-b8
                           Pb3-b2  Kh3-g2  Pa5-a4  Rb8xb2  Bg7xb2  Ph2-h4
                           Bb2-f6  Ph4-h5
 11 ->   1:02.14 13223816   0 turns
 12    401  9015 19048434  Re8xe7  !!
 12    560 14909 31359849  Re8xe7  Rc7xe7  Pb4-b3  Re7-e8  Kg8-h7  Re8-b8
                           Pb3-b2  Kh3-g2  Pa5-a4  Kg2-h3  Pa4-a3  Rb8-a8
                           Pb2-b1Q  Ra8xa3  Qb1-g1  Ra3-a2
 12 ->   2:49.49 35061962   0 turns
Depth=12, Value=560, Time=169.49, Last turn=7.17, Nodes=35061962, N/s=206867
PV = Re8xe7  Rc7xe7  Pb4-b3  Re7-e8  Kg8-h7  Re8-b8  Pb3-b2  Kh3-g2
     Pa5-a4  Kg2-h3  Pa4-a3  Rb8-a8  Pb2-b1Q  Ra8xa3  Qb1-g1  Ra3-a2


Beowulf coughs up hairballs on this one.



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