Search found 1313 matches

by Ozymandias
Sat Apr 03, 2021 10:24 am
Forum: Computer Chess Club: General Topics
Topic: ShashChess
Replies: 249
Views: 87218

Re: ShashChess

Run a test with version 16 against github's version of FF2: # PLAYER : RATING POINTS PLAYED (%) CFS(%) W D L D(%) 1 FF2 : 2000.0 12643.5 25000 51 --- 3646 17995 3359 72 2 Default : 1998.0 2485.5 5000 50 --- 674 3623 703 72 3 Tal : 1997.2 2480.0 5000 50 --- 722 3516 762 70 4 Tal+Capa : 1996.6 2476.0 ...
by Ozymandias
Tue Mar 30, 2021 5:54 am
Forum: Computer Chess Club: General Topics
Topic: Dragon
Replies: 33
Views: 4663

Re: Dragon

Does the Dragon licence permit that ? By making that available free you may be taking business away from the Komodo team. Good question and not really sure how that works. There are other users offering Komodo, Dragon, Shredder, Houdini, etc. I see it no different than letting a friend sit down at ...
by Ozymandias
Thu Mar 25, 2021 11:05 am
Forum: Computer Chess Club: General Topics
Topic: ncm testing at its best
Replies: 3
Views: 404

Re: ncm testing at its best

So much for "dedicated servers".
by Ozymandias
Thu Mar 25, 2021 7:28 am
Forum: Computer Chess Club: General Topics
Topic: ncm testing at its best
Replies: 3
Views: 404

ncm testing at its best

The last SF patch introduces no functional change and yet, it's performance as tested at ncm is more than 12 Elo points behind the previous version. The combined error margins are below 11 Elo points.

Cleanup was detrimental, so... dirt was good?
by Ozymandias
Thu Mar 25, 2021 7:17 am
Forum: Computer Chess Club: General Topics
Topic: Polyglot - merge-book oddity
Replies: 65
Views: 2842

Re: Polyglot - merge-book oddity

I am just worried that folks who did not read this thread will use the new version without understanding the consequences, hence I gave it a different name, not Polyglot but Merge-Books . Well, the old behavior should count as a bug, right?'... . For historical accuracy I should point out that this...
by Ozymandias
Wed Mar 24, 2021 1:44 pm
Forum: Computer Chess Club: General Topics
Topic: Polyglot - merge-book oddity
Replies: 65
Views: 2842

Re: Polyglot - merge-book oddity

In MCTS all nodes should have been played to the end at least once through a 'rollout'. Doesn't the latest one get interrupted by the TC? If the engine waited for them all to finish, wouldn't it lose on time? Books could be mini-maxed and that would be an improvement over current polyglot 2*W+D, bu...
by Ozymandias
Wed Mar 24, 2021 12:47 pm
Forum: Computer Chess Club: General Topics
Topic: Polyglot - merge-book oddity
Replies: 65
Views: 2842

Re: Polyglot - merge-book oddity

jefk wrote:
Wed Mar 24, 2021 11:27 am
from other games, it was found that combining a positional (engine) score
with actual played game statistics, gives the best result.
What engines do best is play, a more or less accurate evaluation is a byproduct of how they're tested. If the DB has reliable information, score should be best.
by Ozymandias
Wed Mar 24, 2021 9:28 am
Forum: Computer Chess Club: General Topics
Topic: Polyglot - merge-book oddity
Replies: 65
Views: 2842

Re: Polyglot - merge-book oddity

In the Wikipedia article about MCTS they say "Rounds of search are repeated as long as the time allotted to a move remains. Then the move with the most simulations made (i.e. the highest denominator) is chosen as the final answer. " Isn't that the most played move? Having results = playing games to ...
by Ozymandias
Tue Mar 23, 2021 10:44 pm
Forum: Computer Chess Club: General Topics
Topic: Polyglot - merge-book oddity
Replies: 65
Views: 2842

Re: Polyglot - merge-book oddity

Weights purely from statistics are flawed anyway. You would have to minimax the opening tree in MCTS fashion to correctly judge the moves. MCTS may be good for playing a game based on partial statistics (not all moves have been searched to the end), but when you have results for all stored position...
by Ozymandias
Thu Mar 18, 2021 7:01 am
Forum: Computer Chess Club: General Topics
Topic: Queens Gambit
Replies: 21
Views: 3081

Re: Queens Gambit

draws scarcely seem to be part of her playing record At least as shown, and as far as I can recall, completely non-existent. She draws against Benny Watts. Can you give me the episode and minute:seconds point at which the scene begins? The way I remember it, she lost to tie for the tour? draws are ...