Author: Ron Murawski
Date: 23:47:45 08/08/02
Go up one level in this thread
On August 08, 2002 at 23:20:47, Slater Wold wrote:
>[D]3r1brk/1p3p1p/p1npp1p1/3Nn1Q1/P1P1PN2/1q4R1/5PPP/B1R3K1 b - - 0 24
>
>How long does it take your engine to understand it's losing?
>
>How long does it take it to understand it's losing badly?
On an AMD 1.8 GHz w/ 64MB hash, the latest Horizon beta sees that Qxa4 is bad in
8.67 seconds, but it takes about 3-1/2 minutes to change to a different move,
with an immediate and enormous fail-low that was not resolved within 10 minutes.
Depth Score Time Nodes pv
4 -24 65 11862 Qa2 Nb4 Qd2 Qf6+ Bg7
5 -77? 65 13146 Qa2 Nb4 f6 Qxf6+ Rg7
5 -107 71 22786 Qa2 Nb4 Nxb4 Qxd8 Qxa4
6 -136? 71 26764 Qa2 Nb4 Nxb4 Qxd8 Qxa4 Bd4
6 -66! 82 42042 Qxa4 Qf6+ Bg7 Ra3 exd5 Qxe5
6 77 104 99509 Qxa4 Nf6 Rg7 Rgc3 Be7 Bb2
7 48? 115 126123 Qxa4 Nf6 Nxc4 Nxg8+ Bg7 Bxg7+ Kxg8
7 48 164 275784 Qxa4 Ne2 exd5 cxd5 Qxe4 Rxc6 bxc6
8 47 291 678510 Qxa4 Nf6 Be7 Rh3 Rg7 Rh6 b6 Bxe5 dxe5
9 18? 494 1294550 Qxa4 Nf6 Be7 N4h5 Rdf8 Qh6 Qb3 Bxe5 Bxf6
9 -58 867 2452923 Qxa4 Nf6 Be7 N4h5 a5 f4 Rgf8 fxe5 gxh5 Qxh5 Bxf6
exf6
10 -29! 2306 5114057 Qxa4 Nf6 Rg7 Qh6 Be7 Nxe6 fxe6 Qh4
10 -29 2581 5921167 Qxa4 Nf6 Ne7 Nxg8 Kxg8 Rh3 b5 cxb5 Qb4
11 -58? 4300 10803116 Qxa4 Nf6 Ne7 Nxg8 f6 Bxe5 Bg7 Nxe6 h6
11 -96 17043 45297936 Qxa4 Nf6 Rg7 Qh6 Be7 N4h5 Bxf6 Nxf6 Qa2 h3
12 -125? 20888 55282826 exd5 Rxb3 Be7 Bxe5+ Rg7 Rd1 Bxg5 Bxg7+ Kxg7 Nxd5
f5
Ron
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