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Subject: Yace 0.99.56

Author: Manfred Rosenboom

Date: 06:19:21 12/26/02

Go up one level in this thread


On December 26, 2002 at 08:03:23, Gerd Isenberg wrote:

>Hi All,
>
>How long does your program need to avoid Qxf1?

[D]1kr5/pp2bNp1/1qb1p3/3n4/P2PN3/1p1B2P1/1B2Q3/R4rK1/w - - am Qxf1;

>In IsiChess some queen-pinned knowledge was helpfull.
>4 seconds to avoid Qxf1 on AMD XP 2.1+ 256MB Hash.
>
>Cheers,
>Gerd

Yace changes very soon (under 1 second) from Qxf1 to Rxf1
(AMD 1,8 GHz)

Yace 0.99.56  UCI 131 MB:
D1  00:00  0.52   Ra1xf1 Bc6xa4
D1  00:00  1.14   Kg1xf1
D2  00:00  0.68   Kg1xf1 Rc8f8
D2  00:00  0.69   Qe2xf1 Rc8f8
D3  00:00  1.02   Qe2xf1 Rc8f8 Qf1f3
D4  00:00  0.98   Qe2xf1 Rc8f8 Qf1f3 Qb6b4
D5  00:00  0.99   Qe2xf1 Rc8f8 a4a5 Qb6b4 Qf1f3
D6  00:00  0.94   Qe2xf1 Rc8f8 a4a5 Qb6b4 Qf1f3 g7g6
D7  00:00  0.59   Qe2xf1 Rc8f8 a4a5 Qb6b4 Bd3e2 Bc6e8 Be2h5
D7+  00:00  0.60   Ra1xf1 Bc6xa4 Ne4g5 Ba4d7 Nf7e5 Bd7e8 Qe2g4 Qb6d6
D7  00:00  0.74   Ra1xf1 Bc6xa4 Nf7e5 Ba4e8 Rf1f7 Be7f6 Ne4xf6 g7xf6
D8  00:02  0.90   Ra1xf1 Bc6xa4 Nf7e5 Ba4e8 Bd3c4 Rc8c7 Ne4d2 Be8a4 Rf1f7
D9  00:08  0.96   Ra1xf1 Bc6xa4 Nf7e5 a7a6 Ne5c4 Qb6c7 Rf1f7 Ba4b5 Nc4e5 Bb5xd3
Qe2xd3
D10  00:34  0.86   Ra1xf1 Bc6xa4 Nf7e5 Rc8c2 Bd3xc2 b3xc2 Ne5d3 Ba4b5 Ne4f2
Qb6c7 Kg1g2 Qc7c6
D11  01:47  0.85   Ra1xf1 Bc6xa4 Nf7e5 Ba4e8 Kg1g2 Nd5f6 Rf1h1 Be8c6 Ne5xc6
Qb6xc6 Rh1c1 Qc6d5 Rc1xc8 Kb8xc8 Qe2f3
D12  04:10  0.90   Ra1xf1 Bc6xa4 Nf7e5 Ba4e8 Rf1f7 Be7f6 Ne4c5 Rc8xc5 Rf7f8
Rc5c8 Rf8xe8 Qb6d6 Qe2h5 Bf6xe5

Best,
Manfred



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