Say I have a database. I would like to analyze it somehow to find a list of positions that have been repeated at least x amount of times.

No, I’m not talking about finding a specific position in a database. That’s just easily done with chessbase. No, I am talking about telling the database: hey show me all positions that occur at least say 25 times in this list of games.

This is in order to find tabias and key positions that may arise after different move orders, but without previously knowing which these positions may be. In other words, from a database, spit out a list of tabias.

Would anyone know how to do that?

Hi

I use an endgame trainer app where the idea is that you can practice endgame positions such as queen vs rook and 100s of others against the engine (stockfish, not sure which version though). I have the depth set at 20 and the move time at 15 with syzygy tables on.

Is depth 20 enough or is this possibly making the endgames easier to win for the human player? As in is the engine using a strong enough defence against my moves? Thanks :)

I'm specifically asking because I want to use the models for the "Staunton glass", "Staunton marble" and "Staunton metal" chess sets as models for 3d printing physical pieces.

Many thanks to who can find them!

I'm having an issue with Komodo Dragon 1: when I set a skill level lower than its maximum, it plays extremely fast, responding instantaneously. When I paired two of them, they played a 50-60 move game in about 2 seconds. I tried raising their "Time Usage" parameter, changing time control and everything, but it doesn't change. I even tried setting an infinite time control but in that case the engines won't play at all. I'm using Cute Chess GUI and other engines work normally, as well as Komodo itself when at its maximum skill level. How can I make Komodo play at a realistic speed and fix all of this?

I am using En croissant chess GUI. I wanted to know how to put an opening book in stockfish and which one. I also have Lc0 and Komodo on that so I wanted opening books for them too.

I'm trying to get Lc0 to work with Maia weights in WhitePawn. I have successfully installed Lc0 on my phone, used my PC to transfer the Maia weights files to the WhitePawn app folder, added the path the weights in WhitePawn, and the engine seems to work and will play rather subpar (as expected) when using the 1100 weights (so the weights must be working since I don't have a chance against Lc0 normally!).

However, the issue is that for Maia to function as intended you have to modify engine parameters to set nodes = 1 (and I wanted to edit some other engine parameters anyway, but no matter how I try to enter them in WhitePawn the engine then refuses to make any moves.

Has anyone successfully modified the engine parameters in WhitePawn? If yes, how did you do it? Alternatively, is there another chess GUI that has the option to add the equivalent of command line flags (that's how I did it on the PC)?

Is there a chessboard that connects to wifi directly (instead of via smartphone/app?)

My nephew lives far away and is learning chess. Nobody else in the family plays so I want to work with him, but he’s only 10 so he doesn’t have a phone and has limited screen time.

What I’m looking for is a digital chessboard that connects directly to the internet so we can play. Bonus points for async so we can play games over multi-day periods, whenever we have time to make a move.

Any suggestions?

Kramnik vs Fritz 10 was the last man vs machine match. Kramnik lost 4-2. But would Carlsen have done any better? I like this question because this computer opponent was in between the eras of when computers were beatable and when they were unbeatable. And since Carlsen is both considered one of the greatest (if not 'the' greatest', and is also a positional player, which suitable for playing against an engine.

As a big fan of human-computer chess, I currently think that if they played, there would be six draws (3-3). I mean that if Carlsen *today* plays against the engine. So, more opening theory and so on.

Thoughts?

Hello

I'm making my first chess bot and I want to use a look up table to program the openings. I can't seem to find any downloads for opening tables online. Does anyone know where I can download one for free? The format doesn't really matter.

Thanks,

Michael

https://preview.redd.it/43gx1z1zmetd1.png?width=2407&format=png&auto=webp&s=d3bc2f3d92c6aa7439a0d80356952aff3a6fc1dc

https://vintologi.com/threads/9x10-chess-with-centaurs.1080/page-2#post-8929

In action:

https://preview.redd.it/l03kgqi7netd1.png?width=1110&format=png&auto=webp&s=7b45db4f05d95dc4c50c790b044056d577e3bef6

I am creating a huge csv dataset of chess positions and their evaluations by Stockfish for neural network training, but I am wondering if a time limit of 0.01 is enough to create decent evaluations on which I will train my neural network

Cheers, Victoria

I wrote this code walkthrough for teaching/learning basic concepts in functional programming.

I hope somebody here find it interesting. Feedback welcomed! Thanks!

say you have 100 pgn games, and you want to know your strength? or tell you the relative strengths, or give you fide values of the average of your games? that's what i'd like to see. yes i understand it would be difficult, but has anyone written anything to try to do this?

I am wondering how strong the cloud analysis on Chess.com is. It only uses stockfish 16 (says so in settings) but reaches high depth relatively fast, cant see NPS though.

I let it play against my own stockfish 17 on 20 depth while I let chess.com search into 35-40 depth, it ended a draw (Cloud was black) and I was confused because I thought a cloud stockfish should easily beat my own Stockfish. It also often has different moves suggested than my own CPU Stockfish, is there any way to test which one REALLY is better / which engine works better? Chess.com has higher depth faster but its stockfish 16 and they draw. And I heard that higher depth can also be because of LOW performance / low CPU Core count.

Hello there,

"Principal Variation 1: Centipawns: 165
Moves: 'd2d3', 'h7h6', 'h2h4', 'g5g4', 'f3h2', 'h6h5', 'c3b5', 'a8b8', 'b5c3', 'g8e7', 'e1g1', 'c6d4', 'c3e2', 'd4e2', 'd1e2', 'f7f5', 'e4f5', 'e7f5', 'c2c3', 'f8g7', 'd3d4', 'e8g8', 'd4e5', 'g7e5', 'f1e1', 'c8b7', 'e2c4', 'd6d5', 'c4d3', 'd8d6', 'h2f1', 'd5d4'"

I suppose that for knowing the principal variation, stockfish had to check the eval for current position, for position after d2d3, for position after, h7h6, for position after h2h4, and so on...
Is there a way for me to get those evaluations without updating position and asking it to run again?

Thank you.

I want to play around with either badfish or worstfish (stockfish variants set to play the worst move) Which is worst? (the one based upon the stronger stockfish version)? Also, I am having trouble finding a download link for either in a UCI compatable .exe for Window 11

I am using this engine - (link). I want to control the elo of the stockfish engine but after setting the Elo to a lower value, the UCI command still shows 1320 as the default. What does this mean, and is there another way to control the engine's strength? I am building a chess platform where users can play against a lower-strength version of the engine.

I see the engine Stormphrax leading TCEC (Top Chess Engine Championship). Ahead of Leela, Stockfish and the others. Is Stormpharx that good?

I get the random part but like how do you actually check whether or not the relevent bits are shifted to the top?

There are things that I don't quite get but mainly, what are considered "blocker" bitboards? Do I just allies&ennemies? Even though a sliding piece reacts differently to them? How does that work?