SF NNUE training questions

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Jouni
Posts: 2432
Joined: Wed Mar 08, 2006 7:15 pm

SF NNUE training questions

Post by Jouni » Mon Aug 10, 2020 6:17 am

Sergio Vieri says: training window of 1 billion sfens. What are sfens? Are they from all game phases? If You train from famous test suites soon SF solves all instantly !?
Jouni

Raphexon
Posts: 386
Joined: Sun Mar 17, 2019 11:00 am
Full name: Henk Drost

Re: SF NNUE training questions

Post by Raphexon » Mon Aug 10, 2020 8:18 am

A sfen is a position.
So it's trained on 1B positions

This is how uncompressed training data looks like / the information a single sfen holds:

fen 2R5/8/7k/3pK3/3P4/1BP3P1/P7/2r5 w - - 1 47
move a2a4
score 1735
ply 92
result 1
e

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