Kakuro (Cross Sums)
Fill each run of white cells with 1-9 adding up to its clue, no digit repeated within a run.
Level 1 / 2
Tap a white cell, then tap a number to fill it.
About this game
Like a crossword built from numbers: black cells carry sum clues instead of letters, white cells hold 1-9 with no repeats within a run — Sudoku-style crossing logic, but addition.
Solving tips & levels
Where an across-run and down-run cross, both sums must hold at once — that's usually where you can pin a digit down. Both levels computer-verified to have exactly one solution. Progress saved locally.