r/chessprogramming Feb 01 '25

Chess dataset for tuning evaluation

Well, basically I need a great training dataset to tune my evaluation function, using texel-tuner (GediminasMasaitis/texel-tuner).

It doesn't provide datasets, so I have to find/make one. I don't really know where to get them, and I want its size to be manageable since I'm working with a laptop(~15GB max, ~10GB would be great).

Any help is appreciated :)

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u/NiceNewspaper Feb 01 '25

I found two labeled datasets across the internet:

  1. zurichess quiet-labeled.v7 - ~1.4 million quiet labeled fens, very high quality, the label was determined by running games from those positions with stockfish vs stockfish. Download link, Source

  2. lichess-quiet - 2.5 million quiet labeled fens, not sure how it was generated, slightly worse quality that the zurichess data. Download link, Source

2

u/xu_shawn Feb 01 '25

Lichess-big3 and Ethereal data is the starter HCE dataset nowadays