Author: Uri Blass
Date: 20:08:33 10/19/05
Go up one level in this thread
On October 19, 2005 at 22:28:11, Peter Kasinski wrote: >On October 19, 2005 at 22:13:20, K. Burcham wrote: > >> >> >>How Long does it take Deep Junior 9 to play 31.Rxe6? >>Please post eval in this position. >> >> [D] 3r1rk1/6p1/p3b1P1/5p1p/1p2R2P/1P6/P1P4Q/1Kb5 w - - 0 31 >> >>kburcham > >The question is more: how long does it take DJ9 not to play this move. >Rxe6 is considered immediately and almost immediately it shows a draw score >(=0.00 31.Rxe6 Rd1 32.Qe2 Rh1 33.Qf3 Rg1 34.Qd5 Be3+ 35.Kb2 Bc1+ etc.) >After over 20 minutes (as in the game) the eval must be dropping below the score >(-3.26) calculated for the selected move Qe5. > >It seems that Junior's conclusion after move 30 seems is that white is lost. > >PK Analysis with Junior9 in the position after 31.Rxe6 gives the following analysis. Junior9 does not see more than a draw for black. I do not know if it is a hash bug of Junior or another problem but there seems to be a problem. New game, Blitz:999' 3r1rk1/6p1/p3R1P1/5p1p/1p5P/1P6/P1P4Q/1Kb5 b - - 0 1 Analysis by Junior 9: 1...Ba3 2.Qc7 +- (3.90) Depth: 3 00:00:00 1...Rd1 2.Qc7 +- (3.22) Depth: 3 00:00:00 1...Rd1 2.Qe2 Rh1 3.Rxa6 Rc8 4.Qxh5 +- (4.01) Depth: 6 00:00:00 5kN 1...Rd2 2.Qe5 Ba3 3.Rd6 Rxd6 4.Qxd6 a5 +- (3.32) Depth: 6 00:00:00 21kN 1...Rd2 2.Qg1 Ba3 3.Qe1 Rd4 4.Rxa6 Re4 5.Qd1 Rg4 +- (3.83) Depth: 9 00:00:00 213kN 1...Rd1! +- (3.02) Depth: 9 00:00:00 236kN 1...Rd1! +- (2.72) Depth: 12 00:00:00 554kN 1...Rd1 2.Qe2 Rh1 3.Qf3 Rg1 4.a4 Be3+ 5.Kb2 Bd4+ 6.c3 bxc3+ 7.Kc2 Rg4 ± (1.09) Depth: 12 00:00:01 1525kN 1...Rd1! ± (0.79) Depth: 15 00:00:04 8607kN 1...Rd1 2.Qe2 Rh1 3.Qf3 Rg1 4.Qd5 Be3+ 5.Kb2 Bc1+ = (0.00) Depth: 15 00:00:05 9843kN 1...Rd1 2.Qe2 Rh1 3.Qf3 Rg1 4.Qd5 Be3+ 5.Kb2 Bc1+ = (0.00) Depth: 18 00:00:14 26761kN 1...Rd1 2.Qe2 Rh1 3.Qf3 Rg1 4.Qd5 Be3+ 5.Kb2 Bc1+ = (0.00) Depth: 21 00:02:44 318959kN 1...Rd1 2.Qe2 Rh1 3.Qf3 Rg1 4.Qd5 Be3+ 5.Kb2 Bc1+ = (0.00) Depth: 23 00:05:39 636930kN (, 20.10.2005)
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