Search found 4585 matches

by Ferdy
Mon Apr 19, 2021 5:40 pm
Forum: Computer Chess Club: General Topics
Topic: Algorithm to determine the difficulty of a chess problem
Replies: 6
Views: 276

Re: Algorithm to determine the difficulty of a chess problem

Hello, I am trying to implement a simple algorithm to generate chess problems. It's pretty simple, I analyze lichess game with an engine and when there is a dramatic change in the evaluation, it means something is happening. However, I can't figure out a reliable way to determine the difficulty of ...
by Ferdy
Mon Apr 19, 2021 5:22 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Tuning search parameters
Replies: 3
Views: 219

Re: Tuning search parameters

You can try the following. Chess Tuning Tools Lakas Optuna Game Parameter Tuner I developed the last 2. They can optimize search or eval params or combination thereof. Some optimizers have genetics algo both in Lakas and Optuna. Lakas uses the nevergrad framework while optuna uses the Optuna framew...
by Ferdy
Sun Apr 18, 2021 2:10 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Tuning search parameters
Replies: 3
Views: 219

Re: Tuning search parameters

You can try the following. Chess Tuning Tools Lakas Optuna Game Parameter Tuner I developed the last 2. They can optimize search or eval params or combination thereof. Some optimizers have genetics algo both in Lakas and Optuna. Lakas uses the nevergrad framework while optuna uses the Optuna framewo...
by Ferdy
Sun Apr 18, 2021 1:24 pm
Forum: Computer Chess Club: General Topics
Topic: Meltwater Champions Chess Tour PGN
Replies: 6
Views: 284

Re: Meltwater Champions Chess Tour PGN.

Grischuk is in airthings and indeed he likes to be under time pressure. Time pressure stats in Champions Chess Tour Airthings Masters Prelims 2020 name games pts gtp gtp_perf 0 Carlsen, Magnus 11 6.5 3 0.67 1 Nakamura, Hikaru 11 6.5 2 0.75 2 So, Wesley 11 6.5 0 NaN 3 Nepomniachtchi, Ian 11 6.0 3 0.5...
by Ferdy
Sun Apr 18, 2021 10:25 am
Forum: Computer Chess Club: General Topics
Topic: Meltwater Champions Chess Tour PGN
Replies: 6
Views: 284

Re: Meltwater Champions Chess Tour PGN.

More comprehensive table with perf for those games where a player is in time pressure. Time pressure stats in Meltwater, Champions Chess Tour Skilling Open - Prelims 2020 games pts gtp gtp_perf Carlsen, Magnus 15 9.0 3 0.33 Nakamura, Hikaru 15 9.0 0 NaN Aronian, Levon 15 8.5 5 0.50 Nepomniachtchi, I...
by Ferdy
Sun Apr 18, 2021 9:23 am
Forum: Computer Chess Club: General Topics
Topic: Meltwater Champions Chess Tour PGN
Replies: 6
Views: 284

Re: Meltwater Champions Chess Tour PGN.

This is the result so far, will upload the tools later in github. Time pressure stats in Meltwater, Champions Chess Tour Skilling Open - Prelims 2020 games pts gtp Carlsen, Magnus 15 9.0 3 Nakamura, Hikaru 15 9.0 0 Aronian, Levon 15 8.5 5 Nepomniachtchi, Ian 15 8.5 1 So, Wesley 15 8.5 2 Firouzja, Al...
by Ferdy
Sun Apr 18, 2021 9:13 am
Forum: Computer Chess Club: General Topics
Topic: Stockfish 13 depth 16 rating estimate
Replies: 2
Views: 327

Re: Stockfish 13 depth 16 rating estimate

What would be the estimated rating of Stockfish 13 at fixed depth 16 playing against the players in the Meltwater Chess Tour at a time control of 15 minutes + 10 seconds increment? I believe it will play at a GM level in the opening and middle game. Fixed depth is hard to estimate since fixed depth...
by Ferdy
Sat Apr 17, 2021 6:44 pm
Forum: Computer Chess Club: General Topics
Topic: Meltwater Champions Chess Tour PGN
Replies: 6
Views: 284

Re: Meltwater Champions Chess Tour PGN.

Thanks I got the files. There is actually a link per tour from your given links where all games can be downloaded at once.

Image
by Ferdy
Sat Apr 17, 2021 5:30 pm
Forum: Computer Chess Club: General Topics
Topic: Stockfish 13 depth 16 rating estimate
Replies: 2
Views: 327

Stockfish 13 depth 16 rating estimate

What would be the estimated rating of Stockfish 13 at fixed depth 16 playing against the players in the Meltwater Chess Tour at a time control of 15 minutes + 10 seconds increment?
by Ferdy
Sat Apr 17, 2021 5:21 am
Forum: Computer Chess Club: General Topics
Topic: Meltwater Champions Chess Tour PGN
Replies: 6
Views: 284

Meltwater Champions Chess Tour PGN

Does anyone can share a pgn with movetime or timeleft after move info of the past Meltwater Champions Chess Tours like Skilling Open, Airthings Masters, Opera Euro Rapid and Magnus Carlsen Invitational. Just the prelim games are enough. I would like to generate time pressure stats, etc.