Search found 4255 matches

by Ferdy
Thu Jul 09, 2020 9:06 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Question on Texel's Tuning Method
Replies: 10
Views: 336

Re: Question on Texel's Tuning Method

I have a theoretical question on Texel's tuning method. If I understand it correctly, the function takes a set of positions, and minimizes the mean squared error of the positions. The error in a position is the difference between the (adjusted) evaluation and the result of the game. Clearly this is...
by Ferdy
Mon Jul 06, 2020 12:46 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Engines playing Musketeer Chess, good price
Replies: 168
Views: 23619

Re: Engines playing Musketeer Chess, good price

Cutechess runs engines in normal priority. Adding -niceEngines 0 in winboard as you suggested solves my time forfeit issue.
by Ferdy
Fri Jul 03, 2020 2:37 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Engines playing Musketeer Chess, good price
Replies: 168
Views: 23619

Re: Engines playing Musketeer Chess, good price

Another observation based from reading the logs is that if time left is 20cs or 200ms or less, there is a high chance that the engine will be forfeited due to time.

The current solution is to add a time buffer of 200ms.

Code: Select all

tbuf = 200
movesleft = 40

timeleft -= tbuf
movetime = timeleft/movesleft
by Ferdy
Fri Jul 03, 2020 12:56 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Engines playing Musketeer Chess, good price
Replies: 168
Views: 23619

Re: Engines playing Musketeer Chess, good price

I run that test in winboard tourney manager with concurrency of 4. I have 4 cores/8 threads, hyperthreading is ON. I am sure there are enough cpu resources as I have not run other programs not even browsing, also I look at the task manager occasionally and cpu utilization is only around 50% to 60%. ...
by Ferdy
Thu Jul 02, 2020 4:27 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Engines playing Musketeer Chess, good price
Replies: 168
Views: 23619

Re: Engines playing Musketeer Chess, good price

Been experiencing some time forfeits in Winboard 4.9.20200531. This is at TC 30s+100ms. In the example below, white still has 16cs or 160ms. It thinks around 16ms and got forfeited. One thing I notice here is that the silence consumes time, around 86747-86591 or 156. Is this really charged to the en...
by Ferdy
Thu Jul 02, 2020 10:09 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Engines playing Musketeer Chess, good price
Replies: 168
Views: 23619

Re: Engines playing Musketeer Chess, good price

It seems like the rule to not gate when king is in check and the king cannot capture the attacker is not yet implemented in winboard and KingSlayer-Aramis 0.8. https://i.imgur.com/1Uf5XS6.png ***h***f/r1bqkbnr/1ppp1ppp/p1n5/4p3/4PPP1/3P4/PPP4P/RNBQKBNR/**H*F*** b KQkq f3 0 4 When I played d8h4h, att...
by Ferdy
Sun Jun 28, 2020 8:27 am
Forum: Computer Chess Club: General Topics
Topic: Looking for uci engines with piece value options shown
Replies: 21
Views: 552

Re: Looking for uci engines with piece value options shown

I don't understand what you are doing. What scores are you averaging? The result of the engine vs engine match. test_engine vs base_engine, from test_engine perspective. If test_engine scores 1.5 points in 2 games, test_engine score is 0.75. But it will be reported to the optimizer as -0.75. Are yo...
by Ferdy
Sun Jun 28, 2020 3:18 am
Forum: Computer Chess Club: General Topics
Topic: Looking for uci engines with piece value options shown
Replies: 21
Views: 552

Re: Looking for uci engines with piece value options shown

I'd be glad to release a Minic version for that if you're interesting I am interested, preferably an option name without space. Also allow the min/max to have more distance from default value. Example: option name KnightValue type spin default 300 min 100 max 500 You can use Minic 2.38 unofficial r...
by Ferdy
Fri Jun 26, 2020 11:45 pm
Forum: Computer Chess Club: General Topics
Topic: Looking for uci engines with piece value options shown
Replies: 21
Views: 552

Re: Looking for uci engines with piece value options shown

xr_a_y wrote:
Fri Jun 26, 2020 3:24 pm
I'd be glad to release a Minic version for that if you're interesting
I am interested, preferably an option name without space. Also allow the min/max to have more distance from default value.

Example:
option name KnightValue type spin default 300 min 100 max 500
by Ferdy
Fri Jun 26, 2020 11:38 pm
Forum: Computer Chess Club: General Topics
Topic: Looking for uci engines with piece value options shown
Replies: 21
Views: 552

Re: Looking for uci engines with piece value options shown

I will be testing/improving an spsa tuner at https://github.com/fsmosca/spsa. I am primarily interested on uci engines with settable piece values. Deuterium has and I am looking for others to try. What I will do is to weaken the engine by unoptimizing its piece value and try the tuner if it can imp...