Zen Chess Collection. A collection of four minimalist chess puzzle games to test your skills in a series of 600 challenges, designed for experienced chess players and newcomers alike. * Enjoy beautifully designed chess boards and pieces, built with a lot of love and craftsmanship; * Original soundtrack, specially composed to increase your focus and concentration; * Four games with 600 puzzles carefully curated by a Chess Grandmaster; Become a Chessmaster!