Why It's Addictive
Quick rounds, clear rules and a reward curve that keeps getting better with every mathematician you unlock.
Beat the Clock
20 seconds per question. The faster you answer, the bigger the time bonus — up to 2× Sigma.
Strike Streaks
Get 10 answers right in a row and every correct answer after that is worth double.
Sigma & Epsilon
Sigma (Σ) is your score and your key to new categories. Epsilon (ε) buys power-ups and early unlocks.
Power-Ups
Stuck? Use a Hint, go 50-50, swap the question or grab 5 extra seconds.
Badges & Achievements
Bronze, Silver and Gold tiers in every category — graduate from Primary School all the way to Professor.
Global Leaderboard
Your lifetime Sigma goes on the leaderboard. See how you rank against players around the world.
Seven Great Minds
Each category is harder — and more rewarding — than the last. Collect lifetime Sigma to unlock the next one, or unlock it early with Epsilon.
Pythagoras' Apprentice
Addition and subtraction to warm up the engine.
Open from the startAl-Khwarizmi's Multiples
Multiplication and exact division.
500K ΣEuclid's Labyrinth
Order of operations — watch out for the traps.
1M ΣNewton's Cell
Nested parentheses, one layer at a time.
2M ΣFibonacci's Cipher
Find the pattern and complete the sequence.
4M ΣEuler's Power
Exponents, roots and factorials.
8M ΣGauss Apocalypse
Hybrid chaos with patterns hidden inside.
16M ΣHow to Play
One level is 20 questions. Four choices, one right answer.
Sigma per correct answer = category base × tier (Bronze ×1 · Silver ×1.35 · Gold ×1.75) × time bonus (up to ×2) × streak (×2) × 100
Try It Now
Five questions from Pythagoras' Apprentice, with the game's real timer and scoring.