Mathdoku

Mathdoku (calcudoku) is a logic puzzle. the goal of each puzzle is to fill a grid with digits 1 through 4 for a 4×4 grid, 1 through 5 for a 5×5, etc. So that no digit appears more than once in any row or any column (a Latin square). Grids range in size from 3×3 to 9×9.

FEATURES:

- modern layout

- multiple difficulties

- hundreds of puzzles for each difficulty

- google play games achievements

- google play leaderboards for every puzzle pack

- auto-save your progress for each puzzle

- undo/redo functionality

- selected cell highlight

- crosshair highlight (optional)

- error detection

- combination highlighter (optional)

- sum highlight

- timer (optional)

- phone and tablet support