Search found 1215 matches

by mjlef
Sun Jun 09, 2019 8:29 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo MCTS
Replies: 39
Views: 7024

Re: Komodo MCTS

cma6 wrote:
Sun Jun 09, 2019 3:26 pm
Thanks, Mark, for the tips.
"set Syzygy Probe Limit to whatever size Syzygy files you have." But that is confusing. I have the 5-man and 6-man Syzygy files, so would that mean Probe Limit = 6?
You should set Syzygy Probe Limit to 6 since you have 6 man Syzygy files.
by mjlef
Sun Jun 09, 2019 2:15 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo MCTS
Replies: 39
Views: 7024

Re: Komodo MCTS

Thanks, Mark, I am experimenting now with ver. 13.02 with MCTS hash at 4096 MB. I will often analyze for hours with 35 cores. BTW, I see that default Syzygy probe depth is now 8; whereas 3 was what we had been using. What is best for very LTC? I set conservative values for Syzygy Probe Depth as the...
by mjlef
Sun Jun 09, 2019 12:36 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo MCTS
Replies: 39
Views: 7024

Re: Komodo MCTS

Tanks, LK, I increased MCTs hash from 16 to 2048, keeping regular hash at 4096. That allowed "MCTS ply" to increase from 30 to 35 on overnight run. How large an MCTS hash would be too large? It will depend on the specific machine, number of Threads, how long you wish to analyze and to some degree u...
by mjlef
Wed Jun 05, 2019 1:33 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: is LVA as in MVV-LVA useless ?
Replies: 9
Views: 2133

Re: is LVA as in MVV-LVA useless ?

Looking at SF's code it seems to be ordering captures & promotions using MVV only + CaptureHistory, and according to this pull the LVA part is insignificant or even useless, unfortunately I don't have the resources to test such a -"is (such a) right here or should it be just (such)"- subtle differe...
by mjlef
Wed Jun 05, 2019 1:18 am
Forum: Computer Chess Club: Tournaments and Matches
Topic: Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental
Replies: 2
Views: 787

Re: Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental

Leela Chess Zero 42478 vs Komodo 13.02 MCTS - experimental Komodo 13 MCTS shows significant speed gains when using SMT and 32 cores on my system configuration. If this setting is somehow hurting K13. Komodo's setting instructions do advise against using this many logical cores. komodo-13.02-64bit.j...
by mjlef
Wed May 29, 2019 1:56 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: The Bumblebee And The Goddess
Replies: 12
Views: 2093

Re: The Bumblebee And The Goddess

Dann Corbit wrote:
Wed May 29, 2019 8:38 am
You have a peculiar genius for the naming of these contests
I was going to say the same thing. He should write for a big newspaper.
by mjlef
Sat May 25, 2019 1:18 pm
Forum: Computer Chess Club: Tournaments and Matches
Topic: FGRL 10 min + 6 sec Rating list - Komodo 13.01 MCTS
Replies: 5
Views: 1610

Re: FGRL 10 min + 6 sec Rating list - Komodo 13.01 MCTS

FGRL Rating list - 10 minutes + 6 seconds Komodo 13.01 MCTS ( +53 to Komodo 12.3 MCTS) On the FastGM 60+0.6 list it only gained 8 Elo over Komdo 12.3 MCTS. When I saw that, I scoffed at MCTS and began to wonder what the fuss was about. But seeing this gain of 53 Elo completely changed my mind. It's...
by mjlef
Sat May 25, 2019 2:47 am
Forum: Computer Chess Club: General Topics
Topic: Chess Engine LoopChess 2018 x64?
Replies: 3
Views: 1760

Re: Chess Engine LoopChess 2018 x64?

By chance happened across the LoopChess site and saw this post:"Loop 2018 Loop 2018 is a 64-bit UCI chess engine that has been completely reprogrammed since October 2018. The engine is specially designed for 64-bit systems and is being consistently optimized. Thanks to its clearly structured struct...
by mjlef
Wed May 22, 2019 5:23 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo 13 released
Replies: 85
Views: 21835

Re: Komodo 13 released

@larry - Can you explain what the search tree looks like in layman's terms? I'm curious as to how this operates. With standard alpha-beta search, the programs just explore alone one line at a time, only saving/remembering the best line. With MCTS search, the whole game tree is stored in memory as a...
by mjlef
Tue May 21, 2019 2:25 pm
Forum: Computer Chess Club: General Topics
Topic: How to get the "usual" Multi PV with MCTS engines?
Replies: 12
Views: 2224

Re: How to get the "usual" Multi PV with MCTS engines?

I want already to rewrite the basis of the opening theory using Lc0, being an 1700 Elo player :lol:. Now, a bit more seriously, I am confident that late nets of the T30 and T40 runs are VERY strong in the openings (provably MUCH stronger than any standard AB engine). So, I let Lc0 21.2rc1 with a go...