-TC=4'+2" (12-15 minutes per game)
-Hash=256 MB
-GUI: Arena 3.5.1
-Books: Perfect_2010.abk (Igel 2.9.0 x64_bmi2_avx2) and TestBook.scb (SlowChess Blitz 2.4 x64)
-default settings for both engines
-1 thread-CPU=Intel i5-7400-3GHz (Kaby Lake)
-6-men Syzygy bases for both engines + EndgameBitbases.sbb & EndgameNets.snn for SlowChess Blitz 2.4 x64
-OS: Windows 10 Home.
SlowChess Blitz 2.4 x64 has 3377 Elo points (CCRL Blitz).
Expected rating for Igel 2.9.0 x64_bmi2_avx2 is around 3342 Elo points (CCRL Blitz).
Igel 2.8.0 x64 has 3343 Elo points (CCRL Blitz).
I'm sure the difference between the two versions is not significant. I am curious to see the results of CCRL & CEGT.