Solve a fresh chess puzzle every day, verified and scored with the Stockfish engine. Choose classic puzzles, the daily puzzle, custom difficulty, or survival mode to sharpen your tactics.
Puzzles run entirely in your browser and are free with no account required — pick a rating range and start solving.
Custom difficulty lets you train at the edge of your ability: pick a rating band slightly above your comfort zone and the puzzles stay hard enough to force real calculation instead of pattern-guessing. Survival mode raises the stakes — keep solving until you miss.
Daily tactics work because they compound. A few minutes of focused calculation each day builds the pattern recognition that shows up in real games as fewer missed tactics and fewer one-move blunders — exactly the mistakes that game review flags most often at every level below master.