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zeFresk / deep-position-analysis

To analyse a chess position in depth using powerfull engines
MIT License
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Enhancements to the script #9

Open magicianfromriga opened 2 years ago

magicianfromriga commented 2 years ago

Hi,

As promised, I would like to suggest some enhancements to this project:

  1. I think the biggest revolution in the chess world would be if we create an ensemble learning method for chess as well. What do I mean by this? Let's say we take the two top engines of today - Leela and Stockfish. What if we asked both Leela and Stockfish to vote on different moves in a position (by vote I mean both eval and the choice number - 1st choice, 2nd choice etc). This way we can extend this logic further:

a) Suppose both the engines agree on a move, then explore it deeper and keep it as top choice.

b) If there is a disagreement - go linearly and try to understand at what point the evals converge. If the eval is positive for the side that we want to do the analysis for (White/Black) then we keep the line, else we remove it.

c) This scenario also has this use-case - suppose there is a move by Leela, which is known for liking different ideas, that is not completely refuted by Stockfish, then explore that idea in further detail.

  1. An extension of the 'chess voting classifier' that I proposed above - use multiple strong engines of today and order 3-4 moves based on individual votes. Do this for each level upto a certain depth in the search tree, then provide a final evaluation based on the top engine being used (Leela/Stockfish).

  2. Right now your script is doing an exponential branching if I am not wrong - if depth is 2 then at the 1st level we have two nodes and then two children for each node correct? So what we can do is that we add another feature that does a linear search i.e. no branches - just give a single line up to a certain ply.

All the enhancements I am suggesting is based on different chess GUI I have explored like Aquarium IDeA, Chessbase DPA (which I currently use) and Extreme Chess Analysis of Banksia GUI. I don't know if we can do all this, but I thought that starting from something is better than starting from nothing.

Would love to know what you think of this. Please label this as an enhancement.

zeFresk commented 2 years ago

I really like this idea and I see no reason why it wouldn't be possible.

I think it would need a bit of work though, but nothing impossible. I tried to tidy the code base a few months ago and document everything, I will continue to do so in the following month. In the meantime, feel free to contact if you have any question.

magicianfromriga commented 2 years ago

Thanks for your response! Unfortunately, I am not a great coder, so not sure how much I can help you with this. But I will try to see what else can be done. What I can give you is a strong chess player's perspective. Please do comment here once you have tidied up the code base so that I can try again.