Search found 629 matches

by Joerg Oster
Fri Nov 09, 2018 8:48 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo MCTS scales worse with TC than Komodo A/B?
Replies: 22
Views: 2132

Re: Komodo MCTS scales worse with TC than Komodo A/B?

First, I checked that K12.2 AB and K12.2 MCTS behave very similarly in all sorts of variants and phases of the game, so Leela weird behavior in variants and endgames (weaker than regular chess performance) is due mostly to its eval and not to its MCTS search. K MCTS is simply about 100-150 Elo poin...
by Joerg Oster
Tue Nov 06, 2018 10:07 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo 12.2 Announcement
Replies: 54
Views: 5555

Re: Komodo 12.2 Announcement

That does look odd. I will take a look. I have not seen that before. Was this from the start position? Mark, I also just tried the Windows version. Same issue. uciok setoption name Use MCTS value true ucinewgame isready readyok go infinite info depth 10 seldepth 5 time 2002 score cp 33 nodes 157 np...
by Joerg Oster
Tue Nov 06, 2018 8:02 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo 12.2 Announcement
Replies: 54
Views: 5555

Re: Komodo 12.2 Announcement

Komodo 12.2 has been released at komodochess.com. As usual it is free for subscribers and discounted 20% for purchasers of Komodo 11 or higher. It includes both the normal and MCTS versions. This is a rather major release, for several reasons. The strength of the MCTS version is vastly improved, up...
by Joerg Oster
Tue Nov 06, 2018 7:00 pm
Forum: Computer Chess Club: General Topics
Topic: Komodo 12.2 Announcement
Replies: 54
Views: 5555

Re: Komodo 12.2 Announcement

Komodo 12.2 has been released at komodochess.com. As usual it is free for subscribers and discounted 20% for purchasers of Komodo 11 or higher. It includes both the normal and MCTS versions. This is a rather major release, for several reasons. The strength of the MCTS version is vastly improved, up...
by Joerg Oster
Tue Oct 16, 2018 9:56 am
Forum: Computer Chess Club: General Topics
Topic: Komodo MCTS and Komodo (Standard?) in CCCC current Blitz battle
Replies: 12
Views: 3367

Re: Komodo MCTS and Komodo (Standard?) in CCCC current Blitz battle

From the log files it looks as if they send MCTS options to the standard Komodo despite 'Use MCTS value false = default' and is not overruled by setting it to true finally. OTH they send 'true' for the MCTS value for the MCTS version, w/o changing default values? A bit confusing, also that both see...
by Joerg Oster
Tue Oct 09, 2018 8:58 am
Forum: Computer Chess Club: General Topics
Topic: Need work-around to get engine to custom settings
Replies: 7
Views: 959

Re: Need work-around to get engine to custom settings

I am running a tournament in arena 3.5. Arena is changing engine settings by itself and this is a known issue. http://talkchess.com/forum3/viewtopic.php?f=2&t=49287 What are some work arounds? The aim is to send each engine: setoption name Threads value 8 setoption name Hash value 128 And for arena...
by Joerg Oster
Wed Oct 03, 2018 8:39 am
Forum: Computer Chess Club: General Topics
Topic: Lc0 v18 rc2 for 2080 Syzygy implementation
Replies: 34
Views: 4451

Re: Lc0 v18 rc2 for 2080 Syzygy implementation

I checked for another set of 400 won 6-men positions against SF8_Syzygy, not a single miss. TBs are only up to 7 men, Leela often misevaluates heavily earlier endgames with many more pieces, I am bit skeptical that based on TB rescoring, Leela will become comparable to top engines in endgames, with...
by Joerg Oster
Tue Oct 02, 2018 10:45 am
Forum: Computer Chess Club: General Topics
Topic: Invictus chess engine r228
Replies: 12
Views: 1577

Re: Invictus chess engine r228

I've decided to release my new chess engine Invictus. It's almost 2 months old now. Features: Magic bitboards with pext optimization Iterative aspiration window search PVS Null move pruning IID SEE/MVV/LVA Transposition table UCI with ponder support SMP support with modified ABDADA and my own impro...
by Joerg Oster
Sat Sep 29, 2018 6:28 pm
Forum: Computer Chess Club: General Topics
Topic: Scorpio 2.8.7 MCTS+NN windows version
Replies: 71
Views: 6767

Re: Scorpio 2.8.7 MCTS+NN windows version

Arghh, stupid me! :shock: The VC Redistributable package was missing. Now it works, finally! C:\Users\XXXXX\Downloads\scorpio288-mcts-nn\bin\Windows>scorpio go quit feature done=0 ht 33554432 X 16 = 512.0 MB eht 524288 X 8 = 8.0 MB pht 32768 X 24 = 0.8 MB treeht 26843136 X 40 = 1024.0 MB processors...
by Joerg Oster
Sat Sep 29, 2018 5:33 pm
Forum: Computer Chess Club: General Topics
Topic: Scorpio 2.8.7 MCTS+NN windows version
Replies: 71
Views: 6767

Re: Scorpio 2.8.7 MCTS+NN windows version

Arghh, stupid me! :shock: The VC Redistributable package was missing. Now it works, finally! C:\Users\XXXXX\Downloads\scorpio288-mcts-nn\bin\Windows>scorpio go quit feature done=0 ht 33554432 X 16 = 512.0 MB eht 524288 X 8 = 8.0 MB pht 32768 X 24 = 0.8 MB treeht 26843136 X 40 = 1024.0 MB processors ...