Zen Chess: Mate in Three Achievements Here is the full list of all 10 Zen Chess: Mate in Three achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc What are achievement flags? Click to find outApply The Walking ECOFinish 10 Levels Iron ViktorFinish 20 Levels The DoctorFinish 30 Levels The Austrian MorphyFinish 40 Levels Baby SnakeFinish 50 Levels The Grand Master SlayerFinish 60 Levels The Flying DutchmanFinish 70 Levels Beast of BirminghamFinish 80 Levels Dean of American ChessFinish 90 Levels Garry the TerribleFinish 100 Levels