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Subject: Re: How long to find White's winning move?

Author: Dann Corbit

Date: 16:19:24 01/02/02

Go up one level in this thread


On January 02, 2002 at 18:29:56, Roy Eassa wrote:

>How long does it take your program/engine to find White's winning move (and to
>achieve a score that shows the program understands that White is winning)?
>
>[D] r4b1k/pp3Ppp/n1p5/2q1B3/2r5/6RP/PP2Q1P1/5R1K w - - 0 1

Pepito finds b4 in 13 seconds on AMD 950 MHz:

Pepito> setboard r4b1k/pp3Ppp/n1p5/2q1B3/2r5/6RP/PP2Q1P1/5R1K w - -
go
Pepito>  5  -304    98    27789  Qe2-e3 Rc4-c2 Rf1-d1 Rc2-f2 Rd1-d7
 5  -283   107    35169  Rg3-d3 Rc4-c2 Qe2-e4 Qc5-b4 Qe4xb4 Na6xb4
 5  -263   121    89133  Rg3-g5 Rc4-c2 Qe2-e4 Qc5-c4 Qe4xc4 Rc2xc4
 5  -263   122    93418  Rg3-g5 Rc4-c2 Qe2-e4 Qc5-c4 Qe4xc4 Rc2xc4
 6  -230   124    99557  Rg3-g5 !!
 6  -175   129   117466  Rg3-g5 Rc4-c2 Qe2-e4 Rc2-c1 Be5xg7 Bf8xg7 Qe4-e8 Qc5-f8
Qe8xf8 Ra8xf8 Rf1xc1 Rf8xf7
 6  -130   137   151080  Rg3-e3 !!
 6  -104   142   171282  Rg3-e3 Ra8-b8 Be5xb8 Na6xb8 Re3-e8 Nb8-d7 Rf1-d1
 6  -104   152   211305  Rg3-e3 Ra8-b8 Be5xb8 Na6xb8 Re3-e8 Nb8-d7 Rf1-d1
 7   -83   167   269199  Rg3-e3 Ra8-b8 Qe2-f3 h6 Be5xb8 Na6xb8 Rf1-e1 Rc4-c2
 7   -83   248   552727  Rg3-e3 Ra8-b8 Qe2-f3 h6 Be5xb8 Na6xb8 Rf1-e1 Rc4-c2
 8   -64   284   687504  Rg3-e3 Ra8-b8 Qe2-f2 h6 Be5xb8 Na6xb8 Re3-d3 Qc5-a5 a3
 8   -64   421  1168615  Rg3-e3 Ra8-b8 Qe2-f2 h6 Be5xb8 Na6xb8 Re3-d3 Qc5-a5 a3
 9   -66   503  1505500  Rg3-e3 Ra8-b8 Qe2-f2 h6 Be5xb8 Na6xb8 Re3-d3 Nb8-a6
Rd3-d8 Qc5-e7
 9   -31   683  2196658  Rg3-g5 !!
 9   -14   871  2977950  Rg3-g5 Rc4-c1 Be5xg7 Bf8xg7 Rg5xc5 Rc1xf1 Qe2xf1 Na6xc5
Qf1-f5 Nc5-a4 b3 Na4-c3 Qf5-d7 Ra8-b8
 9    69  1326  4683611  b4 !!
 9   149  1472  5241042  b4 Rc4xb4 Rg3-g5 Rb4-f4 Rf1xf4 Qc5-c1 Qe2-f1 Qc1xf1
Rf4xf1 Na6-b4 a3 Nb4-d3 Be5-d4
 9   149  1563  5561683  b4 Rc4xb4 Rg3-g5 Rb4-f4 Rf1xf4 Qc5-c1 Qe2-f1 Qc1xf1
Rf4xf1 Na6-b4 a3 Nb4-d3 Be5-d4
10   172  1748  6270208  b4 Rc4xb4 Rg3-g5 Rb4-f4 Rf1xf4 Qc5-c1 Qe2-f1 Qc1xf1
Rf4xf1 h6 Rg5-g6 Kh8-h7 Rg6-e6 Ra8-d8
10   172  2828  9859294  b4 Rc4xb4 Rg3-g5 Rb4-f4 Rf1xf4 Qc5-c1 Qe2-f1 Qc1xf1
Rf4xf1 h6 Rg5-g6 Kh8-h7 Rg6-e6 Ra8-d8
11   205  3148 11159936  b4 !!
11   302  3756 13520876  b4 Rc4xb4 Rg3-g5 h6 Qe2-h5 Qc5xe5 Rg5xe5 Ra8-d8 Re5-e8
Rb4-d4 Re8xd8 Rd4xd8 Qh5-e5
11   302  5754 20310787  b4 Rc4xb4 Rg3-g5 h6 Qe2-h5 Qc5xe5 Rg5xe5 Ra8-d8 Re5-e8
Rb4-d4 Re8xd8 Rd4xd8 Qh5-e5
12   333 10103 35060604  b4 Rc4xb4 Rg3-g5 h6 Qe2-h5 Qc5xe5 Rg5xe5 Rb4-d4 Re5-e8
Rd4-d8 Qh5-e5 Kh8-h7 Rf1-e1



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