Find the one right move. Three tiers: mate in one, mate in two, and win-material tactics. A wrong move resets your streak.
Every position comes from a real game and is machine-verified: mate-in-one puzzles have exactly one mating move, mate-in-two keys force mate against every defense, and tactic puzzles have one move clearly stronger than everything else. If you solve it on the first try with no hint, it counts toward your accuracy. Want a full game instead? Play the bot or a friend →