Cagewhistle

Calcudoku puzzle online

Use each digit once in every row and column. Match the target and operation in every outlined cage.

Practice

Small grids, a little arithmetic

Eight original practice boards begin with 4 × 4 grids before moving to 5 × 5. Four separate daily boards are selected by the UTC date. Each puzzle has exactly one solution.

Addition, multiplication, subtraction and division cages give different ways to narrow down the digits. Hint explains one forced entry. Each puzzle keeps its progress when you switch boards.