Centibox

Can you fill every cell? CENTIBOX: place 1 to 100 on a 10×10 grid — jump exactly 3 cells straight or 2 diagonally. The ultimate logic puzzle.

Can you fill every cell?

CENTIBOX is a deceptively simple number puzzle that will challenge your brain like no other. Place tiles 1 through 100 on a 10×10 grid — but each move must jump exactly 3 cells straight (horizontally or vertically) or exactly 2 cells diagonally. One rule. 100 cells. Infinite challenge.

THE ULTIMATE BRAIN TEASER

Inspired by the legendary Knight's Tour chess problem, Centibox is pure spatial reasoning distilled into a single grid. Every move matters. Plan ahead or get cornered — the puzzle punishes careless play and rewards sharp minds.

Whether you love sudoku, nonogram, or kakuro, Centibox will give your IQ a true workout. No luck. No timers. Just you and 100 squares.

HOW TO PLAY

• Tap any reachable cell to place the next number
• Move exactly 3 cells horizontally or vertically, OR 2 cells diagonally
• Fill all 100 cells to win
• Stuck? Use UNDO to backtrack and try a new route

Simple to learn, nearly impossible to master — the hallmark of every great logic puzzle.

FEATURES

• Clean, distraction-free design — pure puzzle focus
• Colorful animated grid — each number has its own vibrant color
• Possible moves highlighted in real time
• UNDO: go back as many steps as you need
• Best score saved forever — beat your personal record
• 100% offline — no Wi-Fi needed
• Smooth and fast on any device

TRACK YOUR PROGRESS

Your all-time best (the highest number you ever placed) is saved permanently. Every session is a new chance to beat your own record and inch closer to the perfect 100.

Challenge friends: who gets furthest on the first try?

WHO IS THIS FOR?

• Fans of brain teasers, IQ puzzles, and logic games
• Number puzzle lovers: sudoku, kakuro, futoshiki, numberlink
• Chess players who enjoy the Knight's Tour concept
• Anyone who wants a quick mental workout on their commute
• Puzzle veterans looking for something genuinely new

Centibox is hard enough to feel rewarding and simple enough to pick up in 30 seconds. The real addiction kicks in around move 40 — when you realize one wrong step three moves ago just cost you the game.

TIPS FROM THE PROS

• Think at least 3 moves ahead — corners and edges fill up fast
• Keep the center open as long as possible
• Use UNDO fearlessly — great scores come from experimentation
• Every failed run teaches you a new pattern

FREE & OFFLINE

Centibox is completely free to play. No internet connection required. Perfect for planes, commutes, waiting rooms, or any moment you want to sharpen your mind.

Download Centibox now and find out: can YOU fill all 100 cells?