Author: Eelco de Groot
Date: 15:09:00 01/16/00
Go up one level in this thread
For some reason I thought you were from France or something, Ernst! If we don't take care we'll all be speaking Dutch here... Looking at the plydepths I can now reach with the Rebel ECTool engine on the Celeron it almost makes me think that this must be the Masked Marvel that Dann is being so secretive about... Huge plydepths! That would have taken around a month with the 386.. The results are not very interesting in themselves but I just wanted to show off a plydepth of 19. With the Rebel ECTool engine there are no crashes but it cannot solve the difficult first position. I think especially the quiet move 7.g3 that Ed talked about is pruned away and the queen sacrifice at least initially too. I think that just goes to show you that plydepth isn't everything. The larger the plydepth the greater the chance that you accidentally prune away part of the critical variation if that variation grows alongside the plydepth. [D]2r1kb1r/5pp1/p1q1p2p/1p2P3/4Q3/1N2R3/PPP3PP/2KR4 w k - Rebel Engine for ECTool. (c) Ed Schröder Engine version : REBEL 9/10 Hash table size : 13 Mb Analysis mode : Analyzing next move Refresh interval : 1000 ms Game begin 00:01 09.00 0.84 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Be7-g5+ Kc1-b1 00:03 10.00 0.65 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Rc6-c8 Nb3-a5 00:12 11.00 0.56 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Rc6-c8 Rd7-a7 00:49 12.00 0.44 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Rc6-c8 g2-g3 02:07 13.00 0.44 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Be7-g5+ Kc1-b1 04:17 14.00 0.42 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Rc6-c8 g2-g3 14:30 15.00 0.36 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Be7-g5+ Kc1-b1 28:54 15.15 0.41 Nb3-d2 Bf8-b4 c2-c3 Bb4-e7 Qe4xc6+ Rc8xc6 Nd2-e4 09:19 16.00 0.25 Nb3-d2 Bf8-b4 c2-c3 Bb4-a5 Nd2-b3 Ba5-b6 Qe4xc6+ 24:56 16.01 0.48 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Be7-g5+ Kc1-b1 34:04 17.00 0.36 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Rc6-c8 g2-g3 38:12 17.01 0.37 Nb3-d2 Bf8-b4 c2-c3 Bb4-a5 Qe4xc6+ Rc8xc6 Re3-d3 34:06 18.00 0.27 Nb3-d2 Bf8-b4 c2-c3 Bb4-e7 Qe4xc6+ Rc8xc6 Nd2-e4 29:05 18.01 0.48 Qe4xc6+ Rc8xc6 Re3-d3 Bf8-e7 Rd3-d7 Be7-g5+ Kc1-b1 I now manually entered the keymove 1.Re3-c3, to see if Rebel could find 3.Nb3-a5: Last Move : 1.Rc3 (Black to play) 00:00 08.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:01 10.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:02 11.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:08 12.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:11 13.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:34 14.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 01:44 15.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 08:00 16.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 16:12 17.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 36:41 18.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 54:53 19.00 0.00 Qc6xe4 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ Last Move : 1... Qxe4 (White to play) 00:00 08.00 0.00 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:01 10.00 0.00 Rc3xc8+ Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ Last Move : 2.Rxc8+ (Black to play) 00:00 07.00 0.00 Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:02 08.00 0.00 Ke8-e7 Rc8-c7+ Ke7-e8 Rc7-c8+ Last Move : 2... Ke7 (White to play) 00:00 07.00 0.00 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:01 08.00 0.00 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:02 09.00 0.00 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:03 10.00 0.00 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:07 11.00 0.00 Rc8-c7+ Ke7-e8 Rc7-c8+ 00:32 12.00 0.00 Rc8-c7+ Ke7-e8 Rc7-c8+ 01:26 13.00 0.00 Rc8-c7+ Ke7-e8 Rc7-c8+ 02:52 14.00 0.00 Rc8-c7+ Ke7-e8 Rc7-c8+ 05:28 14.16 0.00 Nb3-a5 10:06 15.00 0.00 Rc8-c7+ Ke7-e8 Rc7-c8+ 16:04 15.16 0.00 Nb3-a5 19:06 15.16 1.04 Nb3-a5 Qe4-d5 Rc8-c7+ Ke7-e8 Rd1xd5 e6xd5 23:26 16.00 1.15 Nb3-a5 Qe4-d5 Rc8-c7+ Ke7-e8 Rd1xd5 e6xd5 Na5-c6 53:11 17.00 1.10 Nb3-a5 Qe4-f4+ Kc1-b1 f7-f5 Rc8-c7+ Ke7-e8 Na5-c6 39:01 18.00 1.19 Nb3-a5 Qe4-d5 Rc8-c7+ Ke7-e8 Rd1xd5 e6xd5 Rc7-a7 54:47 19.00 1.15 Nb3-a5 Qe4-d5 Rc8-c7+ Ke7-e8 Rd1xd5 e6xd5 Rc7-a7 It does find 3. Nb3-a5 now -maybe it would also have found it at the second move eventually- but does not find a line with 7.g3. The position you provided on Rebel Board, Ernst: [D]8/6P1/5K2/8/3pq3/2k5/5Q2/8 b - - id Kasparov - The World Rebel Engine for ECTool. (c) Ed Schröder Engine version : REBEL 9/10 Hash table size : 13 Mb Analysis mode : Analyzing next move Refresh interval : 1000 ms Game begin 00:00 07.00 -0.16 Qe4-c6+ Kf6-g5 Qc6-d5+ Qf2-f5 Qd5-d8+ Qf5-f6 Qd8-d5+ 00:03 08.00 -0.82 Qe4-c6+ Kf6-g5 Qc6-d5+ Qf2-f5 Qd5-d8+ Qf5-f6 Qd8-d5+ 00:04 09.00 -0.83 Qe4-c6+ Kf6-g5 Qc6-d5+ Qf2-f5 Qd5-d8+ Qf5-f6 Qd8-e8 00:15 10.00 -0.97 Qe4-c6+ Kf6-g5 Qc6-e6 Qf2-f5 Qe6-e7+ Kg5-g6 Qe7-d6+ 00:39 11.00 -0.99 Qe4-c6+ Kf6-g5 Qc6-e6 Qf2-f5 Qe6-e7+ Kg5-g6 Qe7-d6+ 03:56 12.00 -1.27 Qe4-c6+ Kf6-g5 Qc6-e8 Qf2-f5 Qe8-d8+ Kg5-g6 Qd8-d6+ 06:40 13.00 -0.98 Qe4-c6+ Kf6-g5 Qc6-e8 Qf2-f6 Qe8-a8 Qf6-e6 Qa8-g2+ 19:10 14.00 -1.35 Qe4-c6+ Kf6-g5 Qc6-e6 Qf2-f5 Qe6-e7+ Kg5-h6 Qe7-d6+ 32:30 15.00 -1.31 Qe4-c6+ Kf6-g5 Qc6-e8 Qf2-g3+ d4-d3 Qg3-c7+ Kc3-d2 42:23 16.00 -1.38 Qe4-c6+ Kf6-g5 Qc6-e8 Qf2-f5 Qe8-d8+ Kg5-g6 Qd8-d6+ 02:39 17.00 -1.36 Qe4-c6+ Kf6-g5 Qc6-e8 Qf2-f6 Qe8-e3+ Qf6-f4 Qe3-e6
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