TalkChess.com

supersharp77 wrote: ↑Fri Aug 16, 2019 12:30 am "Here is a very interesting version of stockfish I found on fishcooking chess. It has no compiles and needs one , I am posting the sourcecode ... Here is the description ,,, Would this be a fun idea? Good for playing against normal humans, providing a good challenge, yet not simply crushing us. Normally, an engine evals/prunes/searches to find the move that most improves the overall eval, aka the 'best' move.
Instead, after the usual search, etc, pick the weakest of all the moves that improve the eval.
In this way, SF would still pretty much always beat me, but not so crushingly. A branch named easyPlay
I've coded this up. Basically, enable MultiPV by default, and afterwards pick the worst possible move that still improves the score compared to the previous move. I don't think this reduces strength by more than a few hundred Elo.... so still tough to win, I guess ... source code ... https://www.sendspace.com/file/ussy2o Can someone please compile for Windows and share with the forum ? thanks 'Bonesman' "

Thank You..AR

MikeB wrote: ↑Mon Sep 23, 2019 2:47 am

supersharp77 wrote: ↑Fri Aug 16, 2019 12:30 am "Here is a very interesting version of stockfish I found on fishcooking chess. It has no compiles and needs one , I am posting the sourcecode ... Here is the description ,,, Would this be a fun idea? Good for playing against normal humans, providing a good challenge, yet not simply crushing us. Normally, an engine evals/prunes/searches to find the move that most improves the overall eval, aka the 'best' move.
Instead, after the usual search, etc, pick the weakest of all the moves that improve the eval.
In this way, SF would still pretty much always beat me, but not so crushingly. A branch named easyPlay
I've coded this up. Basically, enable MultiPV by default, and afterwards pick the worst possible move that still improves the score compared to the previous move. I don't think this reduces strength by more than a few hundred Elo.... so still tough to win, I guess ... source code ... https://www.sendspace.com/file/ussy2o Can someone please compile for Windows and share with the forum ? thanks 'Bonesman' "

Thank You..AR

I incorporated this "EasyPlay" code , with some modifications, in making 3 "adaptive play" modes ( Novice, Advanced and Expert) with the SF derivative Honey. In Honey X5i.

Btw, I am releasing an update, Honey X5j, within the next several hours , with a completely overhaul variety function =- it is now a simple checkbox. This new "variety" function is quite robust and lowers the Elo by 200 to 300, depending on the play level selected.

Both Honey X5i and Honey-Crystal-Honey X5i have "adaptive play" modes.

https://github.com/MichaelB7/Stockfish/releases - scroll to the bottom of each release for all flavors of binaries.