A-PUZZLE-A-DAY

Calendar Puzzle

Pick a month and a day. In Play, fit all eight pieces so only that date shows. In Solve, the solver finds every layout for you. Three piece sets, every one solvable on every day of the year.

Keyboard and touch controls
  • Mouse / touch: drag a piece from the key onto the board, or tap a piece and then tap the board. Drag a placed piece to move it. Right-click a placed piece to rotate it.
  • Keys 1–8 select a piece. R or E rotate right, Q rotates left, F flips.
  • Arrow keys move the selected piece as a ghost on the board; Enter or Space drops it, Esc cancels, Delete takes it off the board.
  • Hint places one more piece from a solution that fits what you have. Show Solution finishes the board for you.