McBrain is a tweaked Stockfish, maintained by Micheal Byrne. You can read more about it HERE. As Alexei's arm8 builds started to include the static libraries recently, don't be surprised to see only one arm8 build. It should work on all devices.
Thanks to Alexei for compiling the latest source code dated 20th of October. As usual, you can modify scorpio.ini before installation to alter the settings to your taste. Arm8 users should bear in mind that they'd better try the standard build and in case of problem they try the build entitled "sl" which includes static libraries for more compatibility in exchange of bigger file size.
Description: "CorCfish is an attempt to improve Cfish, in a similar way to what was done with Stockfish to obtain CorChess. Even though the aim may be not extactly the same in detail, the method looks similar. I don't know what the outcome is but you can test it to reveal your opinion."
GET CorCfish Extended 1.8.20171015.ACH for arm7 and arm8
In case of trouble downloading from your PC, use your mobile device or refer to THIS POST.