How to play
Decide which numbers to keep. Cross out the others so every row and column adds up to its target.
- The large number above a column or beside a row is its target. The smaller number is the current total of the numbers still included.
- Tap a number to cross it out; tap it again to restore it. Crossed-out numbers count in neither their row nor their column.
- A check mark appears when a total matches. Match all row and column totals to win.
- Hint corrects one square. Undo and Start over keep your hint count.
- Keyboard: Tab to a number, Enter or Space to toggle it, arrow keys to move around the board.
Each puzzle has exactly one answer. No clock. 4×4 on Monday and Tuesday, 6×6 on Friday and Saturday, 5×5 on other days. Progress saves on this device.
A new puzzle appears every day at midnight. Solve it daily to build your streak.