SMALL GAMES / PUZZLE
Kakuro
A crossword of sums: every run adds up to the figure at its head, and never repeats a digit.
Free · No account · Plays on morassgames.com
HOW TO PLAY
Make every run add up.
- Every white cell takes a digit from 1 to 9.
- A run of white cells adds up to the figure at its head — above the diagonal for the run going right, below it for the run going down.
- No digit appears twice in one run. That is what makes a sum a short list: a 3-in-two can only be 1 and 2, a 16-in-two only 7 and 9.
Three hundred and twenty pages in five sizes, from a three-minute Tally to a half-hour Reckoning, plus one shared page a day. Every page has exactly one answer and can be finished by reasoning alone — no page here ever needs a guess. Tap a clue and it prints every combination it can be, straight out of the back of the book; a digit already spent in a run is struck through on the keypad; and a run that is full and is not right says so in its own figure. Nothing else is told to you: the page does not hold the answer to itself. Each page keeps a public best time, and the one you are in the middle of is still there when you come back.