Author: Uri Blass
Date: 17:10:48 09/15/04
Go up one level in this thread
On September 15, 2004 at 20:04:25, Dann Corbit wrote: >On September 15, 2004 at 19:48:37, Will Singleton wrote: > >>On September 15, 2004 at 19:25:41, Dann Corbit wrote: >> >>>They are not exactly news anymore. Anyway -- the score for Qf1+ always seemed >>>so convincing before that I considered the alternate Qd1+ to be so inferior that >>>it was not worthy of a bust. But a devastating advantage of 17 pawns pretty >>>well signals a win, I think. >>> >>>[D]6k1/p5p1/5p2/2P2Q2/3pN2p/3PbK1P/7P/6q1 b - - bm Qf1+; id "WAC.111"; >>> >>>E:\programme\winboard\Arasan>testsrc -v -t 999 -H 350000 111.epd >>>"WAC.111" >>>ply 1. Qxh2 0 seconds. score: +1.36 2 nodes. >>>ply 1. Qxh2 0 seconds. score: +1.77 32 nodes. >>>ply 2. Qf1+ 0 seconds. score: +1.91 87 nodes. >>>ply 2. Qd1+ 0 seconds. score: +2.27 98 nodes. >>>ply 2. Qd1+ 0 seconds. score: +2.27 217 nodes. >>>ply 2. Qd1+ 0 seconds. score: +1.94 403 nodes. >>>ply 3. Qd1+ 0 seconds. score: +1.94 1004 nodes. >>>ply 4. Qd1+ 1 seconds. score: +1.77 5070 nodes. >>>ply 5. Qd1+ 1 seconds. score: +1.84 15095 nodes. >>>ply 6. Qd1+ 1 seconds. score: +2.34 25565 nodes. >>>ply 6. Qd1+ 1 seconds. score: +6.44 28698 nodes. >>>ply 7. Qd1+ 1 seconds. score: +6.94 29046 nodes. >>>ply 7. Qd1+ 1 seconds. score: +7.56 33095 nodes. >>>ply 8. Qd1+ 1 seconds. score: +7.81 50121 nodes. >>>ply 9. Qd1+ 1 seconds. score: +8.31 51348 nodes. >>>ply 9. Qd1+ 1 seconds. score: +8.45 86277 nodes. >>>ply 10. Qd1+ 1 seconds. score: +8.80 203409 nodes. >>>ply 11. Qd1+ 1 seconds. score: +9.30 210955 nodes. >>>ply 11. Qd1+ 2 seconds. score: +9.42 486838 nodes. >>>ply 12. Qd1+ 3 seconds. score: +9.80 1118739 nodes. >>>ply 13. Qd1+ 5 seconds. score: +10.11 2975827 nodes. >>>ply 14. Qd1+ 5 seconds. score: +10.61 3092568 nodes. >>>ply 14. Qd1+ 14 seconds. score: +11.03 9842234 nodes. >>>ply 15. Qd1+ 31 seconds. score: +11.23 24902293 nodes. >>>ply 16. Qd1+ 78 seconds. score: +11.61 68710668 nodes. >>>ply 17. Qd1+ 81 seconds. score: +12.11 71174244 nodes. >>>ply 17. Qd1+ 217 seconds. score: +12.44 191891996 nodes. >>>ply 18. Qd1+ 222 seconds. score: +12.94 195880805 nodes. >>>ply 18. Qd1+ 662 seconds. score: +16.86 559877434 nodes. >>>ply 19. Qd1+ 999 seconds. score: +16.86 854738444 nodes. >>>855577 nodes/second. >>>572442064 regular nodes, 282296380 quiescence nodes. >>>570363667 searches of hash table, 303209570 successful (53 percent). >>>10937500 hash entries inserted, 57243447 entries replaced, 296346264 inserts >>>failed. >>>move ordering: 1st 98.142% 2nd 1.22517% 3rd 0.263888% 4th 0.0570437% >>>null cutoffs: 6986245 (0%) >>>pruning: 1569422013 moves (futility), 79172316 nodes (razored) >>>extensions: 444457580 check, 994594 recapture, 0 capture, >>> 14120701 pawn, 205350 threat, 10399675 forced move. >>>0 tablebase probes, 0 tablebase hits >>>result: Qd1+ 999 seconds. score:+16.86 854738444 nodes. ** error >>>Qd1+ Kg2 Qg1+ Kf3 Qf1+ Kg4 Qe2+ Kxh4 g5+ Kg3 Bf4+ Qxf4 gxf4+ Kxf4 Qf1+ Kg4 f5+ >>>Kg5 fxe4 dxe4 d3 h4 d2 h5 d1=Q h6 Qc1+ Kh5 Kh7 e5 >> >>I don't think so. All Qd1 does is force the king to move twice before Qf1 is >>played. > >It's not a transposition. Look at the main line of Arasan After Qd1+ Kg2 Qg1+ Kf3 the root position repeats Uri
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.