Calcudoku

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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.

• ↗4,204 offline math logic puzzles, 4×4 to 9×9. Train your brain!