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Grandmaster-level chess without search

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61–70 of 171 posts

Re: Grandmaster-level chess without search

#61

Earlier quoted context omitted.

What’s your rating, have you tried gpt4o? It’s supposedly good up to about 1300, but aside from that the ability to prompt can make the style of play somewhat tunable for ex aggressive, defensive, etc.

Do you know if there are any interfaces to play against got4o? Or is it just typing in algebraic moves back and forth?

It prints an ASCII board, and then yes, you type algebraic moves back and forth and it updates the board for you each turn.

Re: Grandmaster-level chess without search

#62
post #20

OT: what's the state of the art in non-GM level computer chess? Say I want to play chess with an opponent that is at about the same skill level as me, or perhaps I want to play with an opponent about 100 rating points above me for training. Most engines let you dumb them down by cutting search depth, but that usually doesn't work well. Sure, you end up beating them about half the time if you cut the search down enoug…

A long time ago I had the Fritz engine from chessbase. It had a sparring feature where if you maintained good play it would give up a tactical puzzle in the middle of the game. It could either warn you or not. If you didn't play solidly enough, you would just lose.

As far as I can tell, they got rid of this feature. It was the only computer opponent that felt real. Like it made a human mistake when put under pressure, rather than just playing like a computer and randomly deciding to play stupid.

Re: Grandmaster-level chess without search

#63
post #43
post #20

OT: what's the state of the art in non-GM level computer chess? Say I want to play chess with an opponent that is at about the same skill level as me, or perhaps I want to play with an opponent about 100 rating points above me for training. Most engines let you dumb them down by cutting search depth, but that usually doesn't work well. Sure, you end up beating them about half the time if you cut the search down enoug…

I built something like this. It works as long as you're not too high-rated: chessmate.ai. Once players get higher rated it is more difficult to predict their moves because you need to model their search process, not just their intuitive move choice. It's also possible to train on one player's games only so that it is more personalized. It uses a similar approach to Maia but with a different neural network, so it had…

Really nice work! The tabs other than "play" don't seem to be working, but I was able to try some novelty openings and it certainly felt like it was responding with human moves. It would be great to have the ability to go back/forth moves to try out different variations.

I'm curious how you combined Stockfish with your own model - but no worries if you're keeping the secret sauce a secret. All the best to you in building out this app!

Re: Grandmaster-level chess without search

#64
What are some of the go-to books/articles for computer chess? I like the game and have a decent understanding of basics, so studying algorithms based on the game would be a good opportunity for me to learn conventional algos, but also RL/ML/MCTS etc. Also I wonder what is the go-to codebase these days?

Re: Grandmaster-level chess without search

#66
post #20

OT: what's the state of the art in non-GM level computer chess? Say I want to play chess with an opponent that is at about the same skill level as me, or perhaps I want to play with an opponent about 100 rating points above me for training. Most engines let you dumb them down by cutting search depth, but that usually doesn't work well. Sure, you end up beating them about half the time if you cut the search down enoug…

I wonder if loweing the 'temperature' level (how rigid they select the max value completion) on these types of models would achieve this? Might be tricky to tune as the outcome is likely non=linear

Re: Grandmaster-level chess without search

#69
post #38
post #36

I forget the rough adjustment factors, but it is worth noting that lichess Elo is not the same as chess.com or FIDE. I think lichess is typically ~300 points above chess.com. This implies the model is around 2500 blitz vs humans. As blitz elo are often much higher than in classical time controls, 2500 elo on chess.com places it firmly in the 'good but not great' level. I am very curious to know whether the model suff…

> I think lichess is typically ~300 points above chess.com. Yeah, no. They are two different rating systems (not ELO incidentally) with different curves, there isn't a fixed difference you can apply. At the high end of the scale lichess ratings are below, not above, chess.com ratings. E.g. Magnus Carlsen is 3131 blitz on lichess [0], 3294 blitz on chess.com [1]. This website [2] tries to translate between the sites,…

Elo. Not acronym, named for its inventor Arpad Emmerich Elo

https://en.wikipedia.org/wiki/Elo_rating_system

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