TalkChess.com

[Gary]

I've been working on the ThreatAttacks evaluation in Stockfish, trying to come up with an improvement. So, I decided to try CLOP out.

I CLOPtomized the 5 parameters (code diff: https://github.com/glinscott/Stockfish/compare/master...improve_evaluate_threats). After 7500 games, CLOP was reporting excellent numbers in the weighted ELO of 28, with 95% LCB of 19.

The Max tab was showing a Mean Elo of 21 though, with 95% LCB of -3. There was no Max found.

Running 1500 games at 40/2sec+0.01 against base Stockfish, ended up at -3 ELO. So, it's close to being good, but not an improvement yet.

Any thoughts on where I could be going wrong with my CLOP usage? Just not enough games in CLOP land? I tested CLOP at 40/1sec initially, and the values I got tested at about -30ELO. So, it's definitely doing better at 40/2sec, but, still - not beating base Stockfish .