Author: Eelco de Groot
Date: 04:50:21 02/10/02
Go up one level in this thread
On February 10, 2002 at 06:24:24, Eelco de Groot wrote: >On February 10, 2002 at 05:34:23, Eelco de Groot wrote: > >>On February 09, 2002 at 23:09:07, Albert Silver wrote: >> >>>On February 09, 2002 at 19:55:58, Andrew Williams wrote: >>> >>>>Hi Ed, >>>> >>>>PostModernist says: >>>> >>>>EPD TEST SET: rebelhard.epd - 360 seconds per position >>>> >>>>ID rebelhard.epd.0001 - CORRECT in 6.05 seconds. nodes: 354557 >>> >>>Could you post the analysis and a few lines beyond? >>> >>> Albert >>> >>>>ID rebelhard.epd.0002 - WRONG. nodes: 35362560 (Nxh6) >>>>ID rebelhard.epd.0003 - WRONG. nodes: 53597184 (Kd2) >>>>ID rebelhard.epd.0004 - WRONG. nodes: 76704256 (Rf3) >>>>ID rebelhard.epd.0005 - CORRECT in 273.02 seconds. nodes: 45357242 >>>> >>>>RESULT: 2 Correct (5 positions @ 360 seconds). >>>> >>>>NODES per second 163993 >>>> >>>> >>>>This is on an Athlon 1200. >>>> >>>>Andrew >> >> >>Me too! I would like to know what Troitzky's intended line was in his study. I >>couldn't find the study on the Net, so far. >> >>Trying Q5T it won't play Rf7: >> >>[d]k2N2K1/8/8/8/5R2/3n4/3p4/8 w - - bm Rf7 (Troitzky); >> >>Game begin >> >>00:00 05.01 -3.22 1.Rf1 >>00:00 07.01 -3.71 1.Rf1 >>00:01 08.00 -4.01 1.Ra4+ Kb8 2.Ra1 Nc1 3.Rb1+ Kc8 4.Nf7 d1=Q >>00:01 08.01 -3.79 1.Rf1 Ne1 2.Nf7 d1=Q 3.Rg1 dxe2 4.Rg7 >>00:02 09.00 -3.97 1.Rf1 Ne1 2.Ne6 d1=Q 3.Rf8+ Kb7 4.Rf7+ >>00:05 10.00 -4.06 1.Rf1 Ne1 2.Ne6 d1=Q 3.Rf8+ Kb7 4.Rf7+ >>00:16 11.00 -4.40 1.Rf1 Ne1 2.Nc6 d1=Q 3.Rf8+ Kb7 4.Nd8 >>01:35 12.00 -4.39 1.Rf1 Ne1 2.Nc6 d1=Q 3.Rf8+ Kb7 4.Nd8+ >>04:05 13.00 -4.59 1.Rf1 Ne1 2.Nc6 d1=Q 3.Rf8+ Kb7 4.Nd8+ >>22:10 14.00 -4.59 1.Rf1 Ne1 2.Nf7 d1=Q 3.Rg1 Ka7 4.Rg7 >>13:11 15.00 -4.76 1.Rf1 Ne1 2.Nf7 d1=Q 3.Rg1 dxb3 4.Rg7 >> >>And after 1.Rf7: >> >>Rebel Engine for ECTool. (c) Ed Schröder >> >>Engine version : REBEL CENTURY 2 >>Rebel personality : "Personality Q5T" >>Opening book file : RebelC.mvs >>Hash table size : 4 MB >>Analysis mode : Analyzing next move >>Refresh interval : 500 ms >> >>Last Move : 1.Rf7 (Black to play) >> >>00:00 05.00 4.54 1..d1=Q 2.Re7 Nc5 3.Ne6 dxg4+ 4.Ng7 >>00:01 08.00 5.09 1..d1=Q 2.Re7 Nc5 3.Ne6 dxd5 4.Re8+ Kb7 >>00:02 09.00 5.47 1..d1=Q 2.Re7 dxg4+ 3.Rg7 gxc8 4.Kh7 Nf4 >>00:04 10.00 5.90 1..d1=Q 2.Ne6 dxg4+ 3.Ng7 Ne5 4.Rf5 g3 >>00:06 11.00 5.91 1..d1=Q 2.Ne6 Ne5 3.Re7 dxg4+ 4.Ng7 gxg5 >>01:16 12.00 6.55 1..d1=Q 2.Rf8 dxg4+ 3.Kh7 gxh4+ 4.Kg8 hxg5+ >>03:43 13.00 6.15 1..d1=Q 2.Rf8 dxg1=Q+ 3.Kh7 gxh2+ 4.Kg7 hxe5+ >>06:14 14.00 6.13 1..d1=Q 2.Rf8 dxg4+ 3.Kh7 gxh4+ 4.Kg7 hxg5+ >>25:49 15.00 6.59 1..d1=Q 2.Rf8 dxg4+ 3.Kh7 gxh4+ 4.Kg8 hxg5+ >>07:27 16.00 6.59 1..d1=Q 2.Rf8 dxg4+ 3.Kh7 gxh4+ 4.Kg8 hxg5+ >> >>Iteration 17 looks to be a fail-low but that could take quite a while. Celeron >>500 MHz, clocking 8 hours so far on a reply to 1.Rf7. > >After 1.Rf7 d1=Q 2.Nc6 I get the following. No more phantom pieces taken by the >queen, maybe that was just a glitch from retrieving lines from hash, but still 7 >pawns difference from seeing it as a draw: > > >Last Move : 2.Nc6 (Black to play) > >00:04 07.00 9.30 2.Ne5 Kg7 3.Qd4 Ne6 4.Qg4 Kf6 5.Nc6 Ng5 6.Kb8 >00:00 03.00 6.59 2..Qg4+ 3.Rg7 Qc8+ 4.Kh7 Qxc6 5.Kh8 Qh6 >00:00 05.00 6.96 2..Qg4+ 3.Kh7 Qe4+ 4.Kg7+ Qxc6 5.Rf8+ Kb7 6.Rf7 Kc8+ 7.Kg8 >Qe6 >00:01 06.00 6.91 2..Qg4+ 3.Kf8 Qc8+ 4.Kg7 Qxc6 5.Rf8+ Kb7 6.Rf7 Kc8 7.Rf8+ >00:02 07.00 6.97 2..Qg4+ 3.Kf8 Qc8+ 4.Kg7 Qxc6+ 5.Rf8 >00:04 08.00 6.92 2..Qg4+ 3.Kf8 Qc8+ 4.Kg7 Qxc6+ >00:14 09.00 7.05 2..Qg4+ 3.Kf8 Qc8+ >00:48 10.00 7.05 2..Qg4+ 3.Kf8 Qc8+ 4.Kg7 Qxc6+ 5.Rf8+ Kb7 6.Rf7+ Kc8 7.Rf8 >Kd7 8.Rf7 >04:07 11.00 6.88 2..Qg4+ 3.Kf8 Qc8+ 4.Kg7 Qxc6+ 5.Rf8+ Kb7 6.Rg8 Qe4 7.Kf7 >Kc6 8.Re8 >09:55 12.00 7.02 2..Qg4+ 3.Kf8 > >Is this ending Queen vs. Rook really a draw? Then I think RC4 will see that, >even without Nalimov tablebases and the fact that RC2(Q5T) couldn't see it isn't >really relevant anymore of course. So I'm interested what RC4 would make of it! > > Eelco As Uri pointed out it is Queen and Knight against Rook. Thanks Uri, I totally forgot that noble animal there on d3!. After entering a few more moves now in regular Rebel Century 2 (without tablebases of course) after about 1 minute Century 2 sees a draw around the corner: [Event ""] [Site ""] [Date ""] [Round ""] [White ""] [Black ""] [Result ""] [FEN "k2N2K1/8/8/8/5R2/3n4/3p4/8 w - - bm Rf7 (Troitzky);"] 1.Rf7 d1=Q 2.Nc6 Qg4+ 3.Kf8 Qc8+ 4.Kg7 * Last Move : 4.Kg7 (Black to play) 00:00 06.00 7.68 4..Qxc6 5.Rf8+ Kb7 6.Rf7+ Kc8 7.Kg8 Qd5 00:00 07.00 7.59 4..Qxc6 5.Rf8+ Kb7 6.Rf7+ Kc8 7.Rf8+ Kd7 8.Rf7+ Ke8 9.Rf8+ Ke7 10.Rf7+ Kd8 11.Rf8 Ke7 12.Rf7+ Kd8 13.Rf8 00:00 08.00 6.74 4..Qxc6 5.Rf8+ Kb7 6.Rf7+ Kc8 7.Rf8+ Kd7 8.Rf7+ Ke8 9.Rf8+ Ke7 10.Rf7+ Kd8 11.Rf8 Kc7 12.Rf7+ Kd8 13.Rf8 Kc7 14.Rf7+ 00:07 09.00 7.62 4..Qxc6 5.Rf8+ Kb7 6.Rf7+ Kc8 7.Rf8+ Kd7 8.Rf7+ Ke8 9.Rf8+ Ke7 10.Rf7+ Kd8 11.Rf8 00:08 10.00 6.74 4..Qxc6 5.Rf8+ Kb7 6.Rf7+ Kc8 7.Rf8+ Kd7 8.Rf7+ Ke8 9.Rf8+ Ke7 10.Rf7+ Kd8 11.Rf8 00:16 11.00 7.60 4..Qxc6 5.Rf8+ Kb7 6.Rf7+ Kc8 7.Rf8 Kd7 8.Rf7+ Ke8 9.Rf8+ Ke7 10.Rf7+ Kd8 11.Rf8 00:27 12.00 6.69 4..Qxc6 5.Rf8+ Kb7 6.Rf7+ Kc8 7.Rf8+ Kd7 8.Rf7+ Ke8 9.Rf8+ Ke7 10.Rf7+ Kd8 11.Rf8 01:14 13.00 0.00 4..Qxc6 5.Rf8+ Kb7 6.Rf7+ Kc8 7.Rf8+ Kd7 8.Rf7+ Ke8 9.Rf8+ Ke7 10.Rf7+ Kd6 11.Rf6 Kd5 12.Rxc6
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