Daily Calendar Puzzle

Play the calendar puzzle online, free, in your browser — no download and no account. Arrange eight pieces on a 43-cell board so the only cells left uncovered are today's month and day. A new puzzle every day.

Play live against other people

The multiplayer arena starts a new round every five minutes. Everyone in the world gets the same board and the same pieces at the same moment, and the fastest solve tops the round leaderboard — so you can race friends or strangers head to head instead of comparing times after the fact. Nothing else in the calendar-puzzle world does this.

Every date, solved

Browse exact solutions for all 366 dates if you are stuck on a physical puzzle, or learn the technique — geometry, parity, openings and the traps that cost the most time.

Play multiplayer calendar puzzle live · All 366 solutions · Strategy course