Calcudoku: Math Logic Puzzles

Learn as you solve. Get intelligent, step-by-step guidance that teaches you the logic behind candidate note pruning instead of just revealing the answer!

Tired of puzzle games that just give you the answer when you get stuck?

Welcome to a smarter way to play Calcudoku. Whether you are a seasoned veteran or a logic puzzle beginner, our app doesn’t just show you where numbers go—it teaches you how to find them.

--- THE SMART DIFFERENTIATOR ---

When you hit a wall, our built-in helper analyzes your exact grid state and explains the logical next step. Instead of ruining the puzzle by solving the cell for you, the engine guides you through advanced grid strategies. You’ll learn how to cross-reference cages, update your notes, and look for cell candidate reductions so you can solve the grid completely on your own.

--- KEY GAME FEATURES ---

• INTELLIGENT EXPLANATIONS: Step-by-step guidance focused on note-taking, elimination strategies, and candidate pruning.

• OPTIONAL AUTO NOTES: Start new games with notes in cells based on cage arithmetic.

• SMOOTH NOTES: Rapidly input and edit candidate notes with an intuitive, fluid UI built for mobile screens.

• COMPLETE ARITHMETIC VARIETY: Choose grids featuring addition, subtraction, multiplication, and division loops.

• GRIDS FOR EVERY SKILL LEVEL: Play everything from quick 4x4 warmups to grueling, massive 9x9 math matrices.

• POLISHED INTERFACE: Full native dark mode support, crisp typography, and an offline-first architecture so you can play anywhere without Wi-Fi.

Master the grid, elevate your deduction skills, and train your brain with a game that actually makes you a better solver.