: Available for Windows and macOS, often on sale for as low as $0.49 [ 1.4.8 , 1.2.9 ].
: You step into the shoes of World Chess Champions, solving 150 puzzles based on actual historical games [ 1.2.4 , 1.3.6 ]. Zen Chess: Champion’s Moves Free Download
: Currently listed for $0.99 [ 1.5.2 , 1.5.3 ]. : Available for Windows and macOS, often on