Author: Jon Dart
Date: 19:00:14 07/24/05
Arasan lost a human-computer ICC game to this move:
[D] 2r2r1k/4b1pp/nq2pp2/pb1pN1PB/1p1P1P2/4P3/PP5P/R1B1QRK1 w - -
bm Ng6+
This is Arasan 8.4 on an Athlon XP 2500, 64MB hash:
bm Ng6+
ply 1. gxf6 0 seconds. score: -1.20 25 nodes.
ply 1. gxf6 0 seconds. score: -1.20 89 nodes.
ply 2. gxf6 0 seconds. score: -1.20 305 nodes.
ply 3. gxf6 0 seconds. score: -0.97 1357 nodes.
ply 4. gxf6 0 seconds. score: -1.05 2806 nodes.
ply 5. gxf6 0 seconds. score: -1.05 8912 nodes.
ply 6. gxf6 0 seconds. score: -1.05 20332 nodes.
ply 7. gxf6 0 seconds. score: -1.23 93408 nodes.
ply 8. gxf6 0 seconds. score: -1.14 164693 nodes.
ply 9. gxf6 0 seconds. score: -1.06 346182 nodes.
ply 10. gxf6 1 seconds. score: -0.94 681408 nodes.
ply 11. gxf6 2 seconds. score: -1.02 1446900 nodes.
ply 12. gxf6 7 seconds. score: -0.88 4370738 nodes.
ply 13. Ng6+ 17 seconds. score: -0.38 10120225 nodes.
ply 13. Ng6+ 25 seconds. score: +2.69 14071793 nodes.
ply 14. Ng6+ 32 seconds. score: +2.69 17850954 nodes.
ply 15. Ng6+ 53 seconds. score: +2.89 30288162 nodes.
ply 16. Ng6+ 60 seconds. score: +2.89 33764138 nodes.
562642 nodes/second.
10766630 regular nodes, 22997508 quiescence nodes.
10763623 searches of hash table, 4058925 successful (37 percent).
1999630 hash entries inserted, 3269583 entries replaced, 3119500 inserts failed.
null cutoffs: 3669177 (10%)
pruning: 22056366 moves (futility), 449643 nodes (razored)
extensions: 1898022 check, 104237 recapture, 203810 pawn,
43813 threat, 350958 forced move.
0 tablebase probes, 0 tablebase hits
position hash hit rate = 12.3055%
pawn hash hit rate = 97.549%
king/pawn hash hit rate= 90.5899%
lazy cutoff in eval = 47.0112%
result: Ng6+ 60 seconds. score: +2.89 33764138 nodes. ++ correct
Ng6+ hxg6 Bxg6 fxg5 Qg3 g4 Qxg4 Bg5 Qxg5 Kg8 Qh4 Rfd8 Qh7+ Kf8 Rf2 Rc6 f5 exf5 Q
h8+
solution times:
0 1 2 3 4 5 6 7 8 9
0 | 17.96
correct : 1/1
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
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