Cube Sudoku: 3D Sudoku Puzzle

Turn the cube, solve the grid: classic sudoku wrapped around a 3D cube, where edges and corners link the faces. Start free with the tutorial and today's Daily Cube.

Sudoku, wrapped around a cube.

Cube Sudoku takes the classic 9×9 sudoku you know and wraps it around a 3D cube you turn with your finger. Six faces, but one connected puzzle: every cell on an edge belongs to two faces, every corner cell to three. Place a digit on one face and it instantly appears on every face that shares that cell – each move ripples around the cube.

TURN, LOOK, SOLVE

• Spin the cube freely – when you let go, it snaps neatly onto a face, an edge or a corner. • Digits lie flat on the surface and always turn to stay upright. • Pinch to peek: enlarge the cube for a moment and take a closer look. • An interactive tutorial inside the real game shows how shared edge and corner cells work.

PURE LOGIC, NO GUESSING

• Every puzzle has exactly one solution and can be solved by logic alone. • Five levels – Easy, Medium, Hard, Expert and Master – graded by the hardest technique a puzzle requires, not by the number of given digits. • Stuck? A hint explains the next logical move with a short reason and highlighted cells – from singles and subsets to X-Wing, Swordfish, Jellyfish and XY-Wing.

A NEW CUBE EVERY DAY

Three daily puzzles: Easy, Medium and Hard. Keep your streak going, beat your best times and, if you like, compare yourself on optional Game Center leaderboards.

ALL THE CLASSIC TOOLS, ALWAYS INCLUDED

Pencil notes, unlimited undo and redo, timer, optional mistake highlighting, haptics and sound you can turn off.

CALM, PRIVATE, YOURS

• No ads, no subscription, no account, no tracking SDK. • Puzzles are generated on your device: play offline, and your game in progress is saved locally. • Optional iCloud sync of your solve history. • iPhone and iPad, portrait and landscape, with hardware keyboard support on iPad. • VoiceOver support with a face picker and a 9×9 cell grid, plus Reduce Motion support.

FREE TO START

Play the tutorial, today's Daily Cube on Easy and five free games on Easy, Medium or Hard – with three explained hints per puzzle and no sign-up.

The full version is a single one-time purchase with Family Sharing: unlimited new puzzles, Expert and Master, the Medium and Hard Daily Cubes, unlimited hints and detailed statistics.

Classic rules. A new dimension. Turn the cube and see how it all connects.