Does a utility already exist to transform the Lichess tactical problems into regular EPD

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Norm Pollock
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Re: Does a utility already exist to transform the Lichess tactical problems into regular EPD

Post by Norm Pollock »

Hi Dann,

I did something like this about a year ago. I determined that lichess puzzles were mostly trivial -- just keep checking the king and you win.

I did save the checkmates for mate in 3 through mate in 8. You might already have them. But here is a link.

https://www.mediafire.com/file/4z6cwauq ... 78.7z/file

I hope it helps.

-Norm
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Dann Corbit
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Re: Does a utility already exist to transform the Lichess tactical problems into regular EPD

Post by Dann Corbit »

Thanks Norm.
I am surprised that the set is not more interesting. They mention 50 CPU years of compute time.
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Halifax
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Re: Does a utility already exist to transform the Lichess tactical problems into regular EPD

Post by Halifax »

Dann Corbit wrote: Sun Oct 20, 2024 10:09 pm Thanks Halifax.
That saved me some toil.
I will run your script against the new file if it looks like the contents are valuable.
I am guessing that almost all of them will be too easy.
Yes. They're all fairly simple puzzles, and if any of that is malformed, I wouldn't be surprised. They're very difficult to put together from that CSV. The really good stuff is in the Encyclopaedia of Chess Combinations (from Chess Informant). I have a PGN for both the 5th and 6th editions, which I own as a downloadable CBH. But obviously I can't share those. There's the books to look at, if you're curious, or you can go and purchase it from them for forty bucks.
Dann Corbit
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Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Does a utility already exist to transform the Lichess tactical problems into regular EPD

Post by Dann Corbit »

I have pretty much every chess combination/chess tactics book (clear back to really old books). If I have that one, I bought it a long time ago, however, so it probably would be good to update it.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.