Adaptive tactics drill
Puzzles picked from your weakest patterns, near your current puzzle rating. New here? It starts by sampling the core themes so it can find your weak spot.
Your weakness map
First-try accuracy per pattern (number of puzzles in brackets). Hints and "show solution" count as misses. Stored only in this browser.
Free: 10 adaptive puzzles a day. Pro: unlimited, plus spaced review of every miss. Theme pages are always unlimited.