How do you play Kakurasu?

Kakurasu is played on a grid where each column has a position value (1, 2, 3...) and each row has a position value (1, 2, 3...). You shade cells so that each row's clue equals the sum of column-values of shaded cells in that row, and each column's clue equals the sum of row-values of shaded cells in that column.

How many levels does Kakurasu have?

Kakurasu has 27 unique hand-crafted levels across 6 difficulty tiers: Beginner (4x4), Easy (5x5), Medium (6x6), Hard (7x7), Expert (8x8), and Master (9x9).

Is Kakurasu free to play?

Yes, Kakurasu on GameZipper is 100% free to play in your browser with no download required. It works on desktop and mobile devices.

Play Kakurasu Online Free - Sum Position Logic Puzzle

How to Play Kakurasu

Goal: Shade cells so every row & column clue is satisfied.

Row clue (right) = sum of column-numbers of shaded cells in that row.

Column clue (bottom) = sum of row-numbers of shaded cells in that column.

Gold cells are locked givens — already correct.

Tap a cell to shade/unshade. Satisfied clues glow cyan.