SUGAKU - Prime Number Maze

Judge each number — prime or not — and find your path. A fresh math puzzle that's simple to learn, hard to master. Build a daily brain training habit.

A maze filled with numbers. Your only path: the prime numbers. The rules are simple. But can you spot the primes?

■ How to Play Navigate a grid of numbers from start to goal, stepping only on prime numbers. Hit a composite and it's a miss. Find the shortest route and beat the clock for the best rank.

■ 5 Difficulty Levels • 5×5 (2–49) — Start here • 7×7 (2–79) — Sharpen your prime sense • 10×10 (2–99) — Two-digit challenge • 15×15 (2–149) — Three-digit primes appear • 20×20 (2–299) — The ultimate maze

■ Daily Maze One puzzle a day, the same for everyone. Keep your streak alive.

■ Maze Packs • Twin Primes — Chase (p, p+2) prime pairs • Mersenne Numbers — Spot the 2ⁿ-1 traps • Giant Primes — Face three-digit prime judgment

■ Boss Battles Every 5 levels, a boss appears. Use your collected primes as weapons — factorize composites to defeat them. Speed judgment battles too.

■ Online Leaderboards Register a nickname and compete with players worldwide across four leaderboards: by maze size, overall total, run score, and daily maze. Participation is optional and only active after you opt in. Sign in with Apple or Google to carry your scores across devices.

■ Depth & Replayability • S to D rank scoring • 32 achievement badges • 117-prime collection encyclopedia • Online leaderboards (by size, total, run score, daily) • Stats & personal best tracking

Sharpen your math instincts while having fun. Perfect for commutes, study breaks, or anyone who loves numbers.