About MathMind
MathMind is a free platform for math puzzle enthusiasts. We believe that math puzzles are one of the best ways to keep your brain sharp and have fun at the same time.
Our collection includes alphametic puzzles (also known as cryptarithmetic), where each letter in an equation represents a unique digit. Your challenge is to figure out which digit each letter stands for to make the equation correct.
We add new puzzles regularly and plan to expand into more puzzle types including magic squares, math tic-tac-toe, and more.
What are Alphametic Puzzles?
An alphametic is a type of mathematical puzzle where letters replace digits in an arithmetic equation. The classic example is SEND + MORE = MONEY, where the solution is S=9, E=5, N=6, D=7, M=1, O=0, R=8, Y=2 (9567 + 1085 = 10652).
The rules are simple: each letter stands for a unique digit from 0-9, and no number can start with zero.
What Makes MathMind Different
Free Forever
No account required. No subscriptions. Every puzzle, every feature, completely free.
200+ Puzzles
From beginner-friendly to expert-level challenges. New puzzles added regularly.
Interactive Solving
Not just a puzzle list — solve puzzles directly in your browser with instant feedback.
5 Languages
Available in English, German, Japanese, Spanish, and Chinese.
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