Author: Jon Dart
Date: 19:18:51 02/01/04
Go up one level in this thread
On February 01, 2004 at 21:56:26, Anthony Cozzie wrote:
>I think black may already by lost or at least in bad shape. Zappa suggests c5
>but with a pretty bad score for black.
>
I agree, Black's pawn structure is pretty bad and the King is unsafe. Weirdly,
Arasan thinks Black is better here, and would even play f4 at some iterations,
but eventually prefers f6:
ply 1. fxe4 0 seconds. score: +1.30 4 nodes.
ply 1. fxe4 0 seconds. score: +2.22 40 nodes.
ply 2. fxe4 0 seconds. score: +2.05 293 nodes.
ply 3. fxe4 0 seconds. score: +2.05 1427 nodes.
ply 3. fxe4 0 seconds. score: +1.11 2520 nodes.
ply 4. fxe4 0 seconds. score: +1.11 4538 nodes.
ply 5. fxe4 0 seconds. score: +1.25 16399 nodes.
ply 6. fxe4 0 seconds. score: +1.23 43582 nodes.
ply 7. fxe4 0 seconds. score: +1.13 156492 nodes.
ply 8. fxe4 1 seconds. score: +0.92 566339 nodes.
ply 9. c5 6 seconds. score: +0.69 2274342 nodes.
ply 9. c5 6 seconds. score: +0.69 2391739 nodes.
ply 10. fxe4 12 seconds. score: +0.47 5027652 nodes.
ply 10. fxe4 18 seconds. score: +0.47 7323570 nodes.
ply 11. fxe4 33 seconds. score: +0.48 13513166 nodes.
ply 12. f4 159 seconds. score: +0.50 66008363 nodes.
ply 12. f4 172 seconds. score: +0.50 71683722 nodes.
ply 13. f6 553 seconds. score: +0.09 227038696 nodes.
ply 13. f6 600 seconds. score: +0.09 246959854 nodes.
411593 nodes/second.
86166706 regular nodes, 160793148 quiescence nodes.
85154833 searches of hash table, 22547006 successful (26 percent).
2000000 hash entries inserted, 9292423 entries replaced, 62154334 inserts failed
.
move ordering: 1st 93.6242% 2nd 3.62059% 3rd 1.07942% 4th 0.340632%
null cutoffs: 29785559 (12%)
pruning: 332778220 moves (futility), 44553403 nodes (razored)
extensions: 24561441 check, 1131625 recapture, 15012 capture,
152059 pawn, 37410 threat, 884226 forced move.
0 tablebase probes, 0 tablebase hits
search: f6 600 seconds. score: +0.09 246959854 nodes.
f6 exf5 Kd8 Rb6 c5 Rb3 Qa5 Be3 Nb6 Rfb1 Rb8 Nd5 Qxd2
--Jon
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.