I have been testing various engines against each other playing Douglas Modern chess and have now got to the point where I have identified some very strong engines, some strong, and the rest. To give the better ones a shot at being champion, I’ve started a series of round-robin heats, with four engines at a time. After the 12 games, the best three will advance to the next round. The format of the final(s) is still to be decided.

The groups I’m using are:

Alaric707
Cyrano
Defenchess_2.2
Ethereal 20191110

Fire_7.1_x64
Fruit-2-3-1-Linux
GarboChess2-32
andscacs

critter-16a-64bit
demolito
discocheck_5.2.1_x86-64
gnuchess-5.50-32

komodo-10-linux
laser
rofChade
stockfish

texel64
xiphos-0.6-linux-sse
arasanx
fizbo

I expect the final four to probably be Stockfish, Xiphos, and two of Laser, FIre, or  Ethereal.