The math puzzle that makes your brain work. Unlimited play, no daily limit.
Each guess must be a valid math equation with exactly 8 characters.
Simple rules, endless challenge.
Enter any valid math equation using digits (0–9) and operators (+, −, ×, ÷, =). It must be exactly 8 characters and mathematically correct.
After each guess, tiles change color to show how close you are. Green means right character in the right place. Purple means right character, wrong place. Gray means not in the equation.
Use the color hints to narrow down the answer. There's no attempt limit — keep going until you crack the equation!
Your wins, streaks, and guess distribution are saved automatically in the Journey tab. Watch your math skills improve over time.
Three colors guide you to the answer.
This character is in the answer and in the exact right position. Keep it!
This character exists in the answer but belongs in a different position.
This character does not appear anywhere in the hidden equation.
Every guess must be a real, balanced equation.
The equation must be exactly 8 characters long — including digits, operators, and the equals sign.
The left side of the equals sign must equal the right side. Invalid equations are rejected.
You can only use digits and these five characters:
Standard math rules apply. Multiplication and division are evaluated before addition and subtraction.
Numbers cannot start with a zero unless the number itself is zero.
Every equation must contain exactly one equals sign, and the result must appear on the right side.
Built for math lovers and puzzle fans alike.
A massive bank of hand-validated equations ensures every puzzle is fair, unique, and satisfying to solve.
No daily limit. Jump into a new equation anytime you want — play one round or fifty.
Track your total wins, current streak, best streak, and guess distribution in the dedicated Journey tab.
Build your winning streak and challenge yourself to beat your personal best. Consistency is rewarded.
All equations are stored on your device. Play on the subway, in the mountains — no internet needed.
Zero tracking, zero accounts. All your data stays on your device. We never collect personal information.