Jonny is a computer chess program written by the German mathematician and programmer Johannes Zwanzger.
Jonny won the 2015 World Computer Chess Championship. It ran on a "btrzx3" linux cluster of the University of Bayreuth using 2,400 AMD x86-64 2.8 GHz cores in total and beat Junior which played with 48 threads on a 24 core Intel Xeon i5.