Chess.com 2018 computer chess championship
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Re: Chess.com 2018 computer chess championship
Most test doesn't show Leela as strong as Stockfish dev at all and even below Komodo / Houdini. I find the result of this CCCC very accurate when I compare to the other test I saw.
Re: Chess.com 2018 computer chess championship
Hello folks,
i know this link to reach the Chess.com 2018 computer chess championship.
https://www.chess.com/computer-chess-championship
But how to reach this page via menu inside chess.com,
neither about Home, Play, learn or share i find this link.
i know this link to reach the Chess.com 2018 computer chess championship.
https://www.chess.com/computer-chess-championship
But how to reach this page via menu inside chess.com,
neither about Home, Play, learn or share i find this link.
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Nay Lin Tun
- Posts: 540
- Joined: Mon Jan 16, 2012 5:34 am
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Nay Lin Tun
- Posts: 540
- Joined: Mon Jan 16, 2012 5:34 am
Re: Chess.com 2018 computer chess championship
Type, "chess.com/cccc"Paloma wrote: ↑Tue Sep 11, 2018 12:15 amHello folks,
i know this link to reach the Chess.com 2018 computer chess championship.
https://www.chess.com/computer-chess-championship
But how to reach this page via menu inside chess.com,
neither about Home, Play, learn or share i find this link.
It is their website code, no menu link in their v3 interface.
Re: Chess.com 2018 computer chess championship
some isolate test doesn't prove much. It wil mean something when most test show Leela stronger than SF 9.Nay Lin Tun wrote: ↑Tue Sep 11, 2018 2:26 amThere is another thread, ? Leela official better than SF 9.
Re: Chess.com 2018 computer chess championship
I think many viewers would appreciate public logs, post mortem, and explanation for how you are addressing whatever hardware failure occurred in game 395 "Ethereal vs. Arasan" on move 59. I've examined the position with Ethereals 10.55, 10.88, and 11.00, and can't reproduce the bizarre move selection that occurred on your hardware, with or without tablebases, with or without ponder, on one thread or eight.
Ethereal 11.00 considers 59. Nxd5 until depth 4, at which point it's never considered again from depth 5 to depth 45 (where I stopped). Depth 5 should be a matter of microseconds on your hardware, and Ethereal had the benefit of pondering on its opponent's turn. I can't figure out how it's possible for Ethereal to have actually communicated that move to your tournament interface.
Also bizarre is that evaluation, depth, nodes, time, speed, and tablebase hit statistics for Ethereal are all missing from your game archives for both 58. ... Qc8 and the fatal and irreproducible 59. Nxd5. Even for a tournament with an unexpected number of crashes, glitches, and irregularities, this seems highly irregular.
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Guenther
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Re: Chess.com 2018 computer chess championship
I could easily reproduce the move (59. Nxd5??) with exact depth and score tooDrCliche wrote: ↑Wed Sep 12, 2018 12:03 pm
I think many viewers would appreciate public logs, post mortem, and explanation for how you are addressing whatever hardware failure occurred in game 395 "Ethereal vs. Arasan" on move 59. I've examined the position with Ethereals 10.55, 10.88, and 11.00, and can't reproduce the bizarre move selection that occurred on your hardware, with or without tablebases, with or without ponder, on one thread or eight.
Ethereal 11.00 considers 59. Nxd5 until depth 4, at which point it's never considered again from depth 5 to depth 45 (where I stopped). Depth 5 should be a matter of microseconds on your hardware, and Ethereal had the benefit of pondering on its opponent's turn. I can't figure out how it's possible for Ethereal to have actually communicated that move to your tournament interface.
Also bizarre is that evaluation, depth, nodes, time, speed, and tablebase hit statistics for Ethereal are all missing from your game archives for both 58. ... Qc8 and the fatal and irreproducible 59. Nxd5. Even for a tournament with an unexpected number of crashes, glitches, and irregularities, this seems highly irregular.
Seroiusly, this was a surprise for me - normally I expect a depth 1 move to be a so called easy move,
but the first indication against it, is the consumed time of 6 seconds (for easy move normally 0).
The pgn and the analysis done by me obviously show that there was a hardware or tournament environment problem
and teh game shouldn't count at all...
Hopefully there aren't other such strange 'hickups' in already played games.
I could run a macro which looks for depth < x, while time > y...
(this is a check for irregular tournament conditions I had done already last year)
Ethereal 10.88 with 4 cores on my old machine (stepped through all moves in analysis to fill the hash):
(you need to scroll down to the bottom for lowest depth)
Code: Select all
exclude: none best +tail
dep score nodes time (not shown: tbhits knps seldep)
35 +0.32 78.2M 0:23.01 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 c3d3 b7a8 b3c3 a8b7 c3b2 b7a8 b2b3 a4a7 d3c3 a7a4 b3b2 a8a7 c3b3 a7c7 b2c1 c7b7 c1c2 b7b6 c2d3 b6a7 g1h1 a7d7 d3c3 d7c8 c3c2 c8b7 b3d3
34 +0.32 55.9M 0:16.28 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 c3d3 b7a8 b3c3 a8b7 c3b2 b7a8 b2b3 a4a7 d3c3 a7a4 b3b2 a8a7 c3b3 a7c7 b2c1 c7b7 c1c2 b7b6 b3c3 b6b7 e3e4 b7a7 e4d5 c6d5 b4d5 a7d4
33 +0.32 43.1M 0:12.49 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 c3d3 b7a8 b3c3 a8b7 c3b2 b7a8 b2b3 a4a7 d3c3 a7a4 b3b2 a8a7 c3b3 a7c7 b3d3 c7a5 b2c1 a5a8 g1h1 a8a7 h1h2 a7c7 h2g1 c7a5 c1c3 a5a7
32 +0.32 29.5M 0:08.54 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 c3d3 b7a8 b3c3 a8b7 c3b2 b7a8 b2b3 a4a7 d3c3 a7a4 b3b2 a8a7 c3b3 a7d7 b2c1 d7b7 c1c2 b7a8 c2b2 a8a5 g1h2 a5c7 h2g1 c7b6 b2c2
31 +0.32 19.7M 0:05.74 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7d6 c3b3 a4a8 b3d3 a8a4 d3c3 d6e7 c3b3 e7d7 h1g1 d7b7 c2c5 b7d7 g1h2 d7c7 h2g1 c7a5
30 +0.32 13.1M 0:03.88 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7d6 h1g1 d6d7 c3d3 d7b7 d3b3 b7a8 c2d3 a8a5 d3c3 a5b6 c3c1 b6a7 c1b2 a7d7
29 +0.32 9.78M 0:02.90 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7d6 h1g1 d6d7 c2d1 d7a7 d1d3 a7d7 d3b1 d7a7 b4c6 d8c6 c3c6 a4a3 g2g3
28 +0.32 6.93M 0:02.07 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7d6 h1g1 d6e7 c3b3 e7b7 c2c3 b7b6 g1h1 b6b7 c3c2 b7a8 c2c1 a8a7
27 +0.32 4.90M 0:01.48 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7e7 h1h2 e7d6 h2g1 d6e7 c3b3 e7b7 c2c3 b7b6 g1h1 b6b7 c3c2 b7a8
26 +0.32 2.90M 0:00.84 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7e7 h1g1 e7a7 c2d3 a7a8 c3b3 a8a5 d3c3 a5b6 g1h1 b6b7
25 +0.32 1.78M 0:00.53 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7e7 h1g1 e7d7 c2d1 d7a7 d1d3 a7b7 e3e4 d5e4 d3e4
24 +0.32 1.10M 0:00.32 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7e7 h1g1 e7d7 c3d3 d7d6 d3b3 d6e6 c2c5 a4a8
23 +0.32 677866 0:00.20 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 c3b3 a7a8 g1h2 a8a7 h2h1 a7c7 h1g1 c7b7 e3e4 d8e6 e4d5 c6d5
22 +0.32 569281 0:00.17 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 c3b3 a7d7 b2c1 d7b7 c1c2 b7d7 b3c3 d7b7 c3d3 b7d7 g1h1
21 +0.32 368770 0:00.12 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2c2 d7b7 c3d3 b7d7 d3b3 d7b7 c2c5 b7d7 g1h2 a4a7 c5c2 d7d6 h2g1 a7a4 c2c3 d6e6
20 +0.32 99153 0:00.04 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2c2 d7b7 c3d3 b7d7 d3b3 d7b7 c2b2 b7d7 b4d3 d8b7 b3c3 f7f6 b2c1 a4c4
19 +0.32 81291 0:00.03 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7a8 c2c1 a8b7 c1b2 b7d7 b4d3 d7a7 d3b4 a7a8 g1h2
18 +0.32 59432 0:00.03 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a5 c2b2 a5b6 b2c3 b6a7 c3b3 a7c7
17 +0.32 47336 0:00.03 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a5 c2b2 a5c7 d3c3 c7b7 c3d3
16 +0.32 41667 0:00.03 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a7 c2b3 a7c7 b3d1 c7a7
15 +0.32 35069 0:00.01 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a7 c2b3 a7c7 b3d1
14 +0.32 28915 0:00.01 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a7 c2b3 a7c7
13 +0.32 21708 0:00.01 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 g1h2 g8g7 b2c2 b7c7 h2h1 c7d7 h1g1 d7e7
12 +0.32 15375 0:00.01 b3c3 c8b7 c3b3 b7d7 h1g1 a4a7 c1c2 a7a4 b3c3 d7e7 c3d3 e7a7
11 +0.32 11493 0:00.01 b3c3 c8b7 c3b3 b7d7 c1c2 a4a7 b3c3 a7a4 h1g1 d7e7 c3d3
10 +0.32 9186 0:00.01 b3c3 c8b7 c3b3 b7d7 c1c2 a4a8 b3c3 a8a4 h1g1 d7e7
9 +0.32 7763 0:00.01 b3c3 c8b7 h1h2 b7a8 c1b2 g7h7 h2g1 a8b7 b4d3
8 +0.32 5803 0:00.01 b3c3 c8b7 c3d3 b7a7 h1g1 a7a5 c1b2 a5c7
7 +0.32 5466 0:00.01 b3c3 c8b7 c3d3 b7a7 h1g1 a7a5 c1b2
6 +0.98 4552 0:00.01 c1c5 c8b7 c5d6 b7a8 d6e5 g7g8 e5e7 a4a3
5 +0.88 1357 0:00.01 c1c5 a4a8 c5e7 d8e6 e7h4
4 +1.08 615 0:00.01 c1c5 d8e6 c5c6 c8c6 b4c6
3 +1.21 293 0:00.01 b3c3 c8c7 b4c6
2 +1.21 197 0:00.01 b3c3 c8c7
1 +0.44 57 0:00.01 b4d5 Current foe list count : [106]
http://rwbc-chess.de/chronology.htm
http://rwbc-chess.de/chronology.htm
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AndrewGrant
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Re: Chess.com 2018 computer chess championship
Following right after, Nemorino vs Laser, Nemorino hangs a Queen for capture by a pawn, turning a 40+ply 0.00 into a mate in 6. Bizarre stuff.Guenther wrote: ↑Wed Sep 12, 2018 12:53 pmI could easily reproduce the move (59. Nxd5??) with exact depth and score tooDrCliche wrote: ↑Wed Sep 12, 2018 12:03 pm
I think many viewers would appreciate public logs, post mortem, and explanation for how you are addressing whatever hardware failure occurred in game 395 "Ethereal vs. Arasan" on move 59. I've examined the position with Ethereals 10.55, 10.88, and 11.00, and can't reproduce the bizarre move selection that occurred on your hardware, with or without tablebases, with or without ponder, on one thread or eight.
Ethereal 11.00 considers 59. Nxd5 until depth 4, at which point it's never considered again from depth 5 to depth 45 (where I stopped). Depth 5 should be a matter of microseconds on your hardware, and Ethereal had the benefit of pondering on its opponent's turn. I can't figure out how it's possible for Ethereal to have actually communicated that move to your tournament interface.
Also bizarre is that evaluation, depth, nodes, time, speed, and tablebase hit statistics for Ethereal are all missing from your game archives for both 58. ... Qc8 and the fatal and irreproducible 59. Nxd5. Even for a tournament with an unexpected number of crashes, glitches, and irregularities, this seems highly irregular.
Seroiusly, this was a surprise for me - normally I expect a depth 1 move to be a so called easy move,
but the first indication against it, is the consumed time of 6 seconds (for easy move normally 0).
The pgn and the analysis done by me obviously show that there was a hardware or tournament environment problem
and teh game shouldn't count at all...
Hopefully there aren't other such strange 'hickups' in already played games.
I could run a macro which looks for depth < x, while time > y...
(this is a check for irregular tournament conditions I had done already last year)
Ethereal 10.88 with 4 cores on my old machine (stepped through all moves in analysis to fill the hash):
(you need to scroll down to the bottom for lowest depth)Code: Select all
exclude: none best +tail dep score nodes time (not shown: tbhits knps seldep) 35 +0.32 78.2M 0:23.01 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 c3d3 b7a8 b3c3 a8b7 c3b2 b7a8 b2b3 a4a7 d3c3 a7a4 b3b2 a8a7 c3b3 a7c7 b2c1 c7b7 c1c2 b7b6 c2d3 b6a7 g1h1 a7d7 d3c3 d7c8 c3c2 c8b7 b3d3 34 +0.32 55.9M 0:16.28 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 c3d3 b7a8 b3c3 a8b7 c3b2 b7a8 b2b3 a4a7 d3c3 a7a4 b3b2 a8a7 c3b3 a7c7 b2c1 c7b7 c1c2 b7b6 b3c3 b6b7 e3e4 b7a7 e4d5 c6d5 b4d5 a7d4 33 +0.32 43.1M 0:12.49 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 c3d3 b7a8 b3c3 a8b7 c3b2 b7a8 b2b3 a4a7 d3c3 a7a4 b3b2 a8a7 c3b3 a7c7 b3d3 c7a5 b2c1 a5a8 g1h1 a8a7 h1h2 a7c7 h2g1 c7a5 c1c3 a5a7 32 +0.32 29.5M 0:08.54 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 c3d3 b7a8 b3c3 a8b7 c3b2 b7a8 b2b3 a4a7 d3c3 a7a4 b3b2 a8a7 c3b3 a7d7 b2c1 d7b7 c1c2 b7a8 c2b2 a8a5 g1h2 a5c7 h2g1 c7b6 b2c2 31 +0.32 19.7M 0:05.74 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7d6 c3b3 a4a8 b3d3 a8a4 d3c3 d6e7 c3b3 e7d7 h1g1 d7b7 c2c5 b7d7 g1h2 d7c7 h2g1 c7a5 30 +0.32 13.1M 0:03.88 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7d6 h1g1 d6d7 c3d3 d7b7 d3b3 b7a8 c2d3 a8a5 d3c3 a5b6 c3c1 b6a7 c1b2 a7d7 29 +0.32 9.78M 0:02.90 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7d6 h1g1 d6d7 c2d1 d7a7 d1d3 a7d7 d3b1 d7a7 b4c6 d8c6 c3c6 a4a3 g2g3 28 +0.32 6.93M 0:02.07 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7d6 h1g1 d6e7 c3b3 e7b7 c2c3 b7b6 g1h1 b6b7 c3c2 b7a8 c2c1 a8a7 27 +0.32 4.90M 0:01.48 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7e7 h1h2 e7d6 h2g1 d6e7 c3b3 e7b7 c2c3 b7b6 g1h1 b6b7 c3c2 b7a8 26 +0.32 2.90M 0:00.84 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7e7 h1g1 e7a7 c2d3 a7a8 c3b3 a8a5 d3c3 a5b6 g1h1 b6b7 25 +0.32 1.78M 0:00.53 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7e7 h1g1 e7d7 c2d1 d7a7 d1d3 a7b7 e3e4 d5e4 d3e4 24 +0.32 1.10M 0:00.32 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 g1h1 a7d7 b2c2 d7e7 h1g1 e7d7 c3d3 d7d6 d3b3 d6e6 c2c5 a4a8 23 +0.32 677866 0:00.20 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 c3b3 a7a8 g1h2 a8a7 h2h1 a7c7 h1g1 c7b7 e3e4 d8e6 e4d5 c6d5 22 +0.32 569281 0:00.17 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2b3 d7b7 b3c2 b7a8 c2b2 a8a7 c3b3 a7d7 b2c1 d7b7 c1c2 b7d7 b3c3 d7b7 c3d3 b7d7 g1h1 21 +0.32 368770 0:00.12 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2c2 d7b7 c3d3 b7d7 d3b3 d7b7 c2c5 b7d7 g1h2 a4a7 c5c2 d7d6 h2g1 a7a4 c2c3 d6e6 20 +0.32 99153 0:00.04 b3c3 c8d7 c1b2 d7a7 h1g1 a7d7 b2c2 d7b7 c3d3 b7d7 d3b3 d7b7 c2b2 b7d7 b4d3 d8b7 b3c3 f7f6 b2c1 a4c4 19 +0.32 81291 0:00.03 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7a8 c2c1 a8b7 c1b2 b7d7 b4d3 d7a7 d3b4 a7a8 g1h2 18 +0.32 59432 0:00.03 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a5 c2b2 a5b6 b2c3 b6a7 c3b3 a7c7 17 +0.32 47336 0:00.03 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a5 c2b2 a5c7 d3c3 c7b7 c3d3 16 +0.32 41667 0:00.03 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a7 c2b3 a7c7 b3d1 c7a7 15 +0.32 35069 0:00.01 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a7 c2b3 a7c7 b3d1 14 +0.32 28915 0:00.01 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 c3b3 g8g7 b2c2 b7b6 b3d3 b6a7 c2b3 a7c7 13 +0.32 21708 0:00.01 b3c3 c8d7 c1b2 d7b7 h1g1 g7g8 g1h2 g8g7 b2c2 b7c7 h2h1 c7d7 h1g1 d7e7 12 +0.32 15375 0:00.01 b3c3 c8b7 c3b3 b7d7 h1g1 a4a7 c1c2 a7a4 b3c3 d7e7 c3d3 e7a7 11 +0.32 11493 0:00.01 b3c3 c8b7 c3b3 b7d7 c1c2 a4a7 b3c3 a7a4 h1g1 d7e7 c3d3 10 +0.32 9186 0:00.01 b3c3 c8b7 c3b3 b7d7 c1c2 a4a8 b3c3 a8a4 h1g1 d7e7 9 +0.32 7763 0:00.01 b3c3 c8b7 h1h2 b7a8 c1b2 g7h7 h2g1 a8b7 b4d3 8 +0.32 5803 0:00.01 b3c3 c8b7 c3d3 b7a7 h1g1 a7a5 c1b2 a5c7 7 +0.32 5466 0:00.01 b3c3 c8b7 c3d3 b7a7 h1g1 a7a5 c1b2 6 +0.98 4552 0:00.01 c1c5 c8b7 c5d6 b7a8 d6e5 g7g8 e5e7 a4a3 5 +0.88 1357 0:00.01 c1c5 a4a8 c5e7 d8e6 e7h4 4 +1.08 615 0:00.01 c1c5 d8e6 c5c6 c8c6 b4c6 3 +1.21 293 0:00.01 b3c3 c8c7 b4c6 2 +1.21 197 0:00.01 b3c3 c8c7 1 +0.44 57 0:00.01 b4d5
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AndrewGrant
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- Joined: Tue Apr 19, 2016 4:08 am
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- Full name: Andrew Grant
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Re: Chess.com 2018 computer chess championship
From the logs provided to me ...DrCliche wrote: ↑Wed Sep 12, 2018 12:03 pm
I think many viewers would appreciate public logs, post mortem, and explanation for how you are addressing whatever hardware failure occurred in game 395 "Ethereal vs. Arasan" on move 59. I've examined the position with Ethereals 10.55, 10.88, and 11.00, and can't reproduce the bizarre move selection that occurred on your hardware, with or without tablebases, with or without ponder, on one thread or eight.
Ethereal 11.00 considers 59. Nxd5 until depth 4, at which point it's never considered again from depth 5 to depth 45 (where I stopped). Depth 5 should be a matter of microseconds on your hardware, and Ethereal had the benefit of pondering on its opponent's turn. I can't figure out how it's possible for Ethereal to have actually communicated that move to your tournament interface.
Also bizarre is that evaluation, depth, nodes, time, speed, and tablebase hit statistics for Ethereal are all missing from your game archives for both 58. ... Qc8 and the fatal and irreproducible 59. Nxd5. Even for a tournament with an unexpected number of crashes, glitches, and irregularities, this seems highly irregular.
info depth 1 seldepth 3 score cp 44 time 6093 nodes 202659512 nps 33255000 tbhits 2067 hashfull 53 pv b4d5
6093ms for a depth 1 search? It looks to me like the main thread got locked out of CPU time, and probably some of the helpers.
33mnps is < 50 % of the average NPS for the recent moves. A depth 1 search with seldepth 3 takes < 1ms
Naturally I blame pondering on hyperthreads. Windows is known to box out threads, and Intel is known to have poor hyperthreading overall.
Some Ethereal specifics ...
above output is reported as soon as the depth 1 search finishes. So that took 6 seconds. Its not like it finished and got hung up on something else, only to report as time ran out.
Seldepth is tracked through all search stages, so truly no line was explored more then 3 moves deep. Thus, there is no magic explosion of the search tree causing a massive slowdown or anything of the like.
Re: Chess.com 2018 computer chess championship
AndrewGrant wrote: ↑Wed Sep 12, 2018 1:00 pmFollowing right after, Nemorino vs Laser, Nemorino hangs a Queen for capture by a pawn, turning a 40+ply 0.00 into a mate in 6. Bizarre stuff.
I didn't think it possible, but CCCC has reached profound new heights of absurdity. Shall I save kranium the trouble of responding?
kranium wrote: ↑Tue Aug 21, 2018 3:43 pmI do hope you can enjoy it instead of picking it apart, leveling accusations, and being so critical of the effort. I certainly realize there's a lot of 'haters', and egotistical people who believe they could do much better, but please don't forget: these events are being produced, funded, and broadcast for free by chess.com for the benefit of community...as the amount of new subscribers necessary to pay for it all is astronomical.
kranium wrote: ↑Wed Aug 22, 2018 10:26 pmYou know, there are are many types of people...ones that jump in, work hard, and make something happen...
ones that graciously accept what's been given for free, and make the best of it and enjoy it...
and ones that stand on the sidelines, waving their arms, complaining about everything.