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Shredder 13 NNUE

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Shredder 13 NNUE
HCE engines with a good HCE evaluation function, to begin with Shredder 13 from Stefan Meyer-Kahlen that was the strongest engine for quite some time.     

How it works - from 46 million Shredder 13 self play games at depth=9, after filtering resulting in a small NNUE of 3.65 billion position which is good enough for an estimated elo rating of 3400, about 250 elo more than the HCE version.        

As an extra bonus, when playing so many games the AI creates a sort of fingerprint of the Shredder evaluation function and so the AI version will also play like Shredder 13 and 250 elo stronger.


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