Marvin is a UCI and CECP (Chess Engine Communication Protocol aka Xboard) compatible chess engine by Martin Danielsson, written in C.
Marvin was originally developed in the early 2000s until 2005, released in May 2004 and January 2005 as closed source engine.
After ten years "out of business", Martin Danielsson restarted the development in 2015. The completely rewritten Marvin 2.0.0 was released as open source engine under the terms of the GNU General Public License (GPL3) in March 2017.
Thanks to Alexei Chernakoff for bringing yet another new engine to Android. I've installed and loaded it into my MTK-6752 arm8 device without problem but didn't yet play any game. I hope it will run well with Chess for Android. Marvin is expected to hit 2400+ ELO in Rapidroid.
GET Marvin 2.0.0 for arm7
...Or you'd better prefer THIS fixed build due to very low perfo of the first one.
In case of trouble downloading from your PC, use your mobile device or refer to THIS POST.