Eman by Khalid Omar is probably the best Stockfish derivative, because the author adds a lot of features to the standard source, like learning, contempt and ctg book support. But for this reason, using the 1.5 gb Eman.exp and Eman.bin on the official zip it is also much slower than my engine using light-weight AI modules.
ProteusSFX-AI 231109 easily wins against it
USING THE SAME HARDWARE (2014 Core i5 4 Cores)
ProteusSFX-AI 231109 - Eman 9.80 5 min game 1-0
@dorsz I'm a Certified Visual Basic 6.0 And Visual C++ programmer (I can show you my documents but I don't want to share them on a forum) tired about silly critics by dummies that have absolutely no programming skills but "release" a new updated engine every day.

(Note 231109 date of my engine that needs deep tests) Anyway I have decided to continue to post on all forum, simply ignoring them.
Added also kid student Ibaibur to foe, then I cannot read his spam anymore.