How to Play
Kakuro is a grid of white and black cells. Each horizontal or vertical run of white cells has a sum clue at one end. You fill the run with digits 1-9 so they add up to the clue, and no digit repeats within the same run.
Runs intersect like crossword entries. A digit must satisfy both its row sum and its column sum, which is how you narrow possibilities.
Controls
Click a white cell and type a digit. Pencil marks and sum helpers are common.
Scoring
Completion time and hint usage determine your rank. Larger grids score higher.
