Play Kakuro

Play Kakuro is a site for the cross-sum puzzle that pairs the grid of a crossword with the logic of sudoku. It comes from Ana Puzzle, the studio behind Who Farted, ClueBy, Aura Clue and Word Ladder. Each day it publishes a numbered puzzle, number 658 on 20 October 2026, in easy, medium and hard versions. Every white cell holds a digit from 1 to 9, every run of cells has to add up to the clue in the triangle beside it, and no digit repeats within a run.

The site promises that every puzzle has exactly one solution reachable without guessing, and the grids get harder through the week, with a star rating from 1 to 5 shown above the board. You tap a cell and type a digit or use the number pad under the grid. A wrong digit shows in red and adds to a mistakes counter, three hints are there when you are stuck, and a timer runs while you solve.

The archive is a calendar of every past puzzle, marked solved or in progress, so a missed day can be caught up. The game is free, with no ads, download or sign-up, works the same on a phone and a desktop, and can be played in English, Spanish, Japanese, German, Italian and Portuguese. It suits sudoku players who want a little arithmetic in their logic.