Calcudoku

Train your brain with CalcuDoku, a logic puzzle that combines Sudoku-style thinking with arithmetic challenges. Every puzzle requires careful deduction — no guessing, just pure logic.

With 4,204 offline levels, you’ll always have a new challenge waiting.

How It Works

Fill the grid with numbers so that:

• Numbers do not repeat in any row or column

• Each bold-outlined cage matches its target number using the given operator

Simple rules — deep strategy.

Game Features

• 4,204 offline levels — play anywhere, anytime

• 6 difficulty levels — from 4×4 up to 9×9 grids

• Optional game timer

• Hints when you get stuck

• Undo button

• Automatic save of game state and progress

• Day and night modes

• Supports portrait and landscape orientations

Whether you want a quick 4×4 warm-up or a challenging 9×9 brain workout, CalcuDoku adapts to your skill level.

Sharpen your logic. Improve concentration. Enjoy thousands of satisfying puzzles.

Download now and start solving.