Chess Mini is a simple but interesting chess playing app. It uses the world's smallest chess engine - Micro-Max, written by Harm Geert Muller, coded in less than 2000 characters and 133 lines of source code. The entire source code can be printed on a single A4 paper and has less words than a high-school assignment.
Despite its smallest size, Chess Mini has a solid understanding of chess and a very broad opening repertoire. It loves to play irregular openings and you will always be surprised in the first few moves of the game. It is also able to play chess variants such as Fischer-Random and Upside-Down.