Puzzle Game
Muzukashii: Focused Sudoku
A full nine-by-nine puzzle with only the box you're working on visible. The rest you hold in your head. Swipe between boxes, watch for the conflict arrows when a digit clashes with one you can't see, and solve it by memory as much as by logic.
- Daily Challenge
- Game Center
- iCloud sync
- Zen mode
Sudoku, but you only see one ninth at a time.
A look inside
What's inside
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Three difficulties
Ichi, Ni, San. Pick your tier and pick up exactly where you left off.
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Daily Challenge
One puzzle a day, the same for everyone. A calendar tracks your streak.
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Zen mode
No timer, no record. Just the board and the leaves.
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Pencil notes
Scratch candidates into a cell; placing a digit clears its peers.
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Conflict arrows
The board you can't see still talks back. A red arrow points to a duplicate hidden in another box.
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Koyo atmosphere
Washi paper, Sumi ink, soft ambient music and a page-flip on every region change.
About Muzukashii
Muzukashii (Japanese for “difficult”) is a minimalist Sudoku that hides most of the board. You see only the three-by-three box you’re working on; the rest of the nine-by-nine lives in your head. Swipe between boxes or tap the mini-map to move around, and let the board you can’t see talk back through subtle conflict arrows when a digit clashes with one hidden elsewhere.
It’s wrapped in a Koyo (autumn-leaf) atmosphere: washi paper, Sumi ink, soft ambient music, and a page-flip on every region change. Play three difficulties, chase the Daily Challenge with a streak calendar, climb Game Center leaderboards, or drop into a timer-free Zen mode.
A single, optional Supporter Edition tip unlocks a few cosmetic extras, but the whole game, including every puzzle, the Daily Challenge, Game Center and iCloud sync, is fully playable for free.
Questions
- How is Muzukashii different from normal Sudoku?
- It is a full nine-by-nine Sudoku, but you only see the three-by-three box you're working on. The rest of the board lives in your memory. Swipe between boxes, and conflict arrows point to a clashing digit hidden in another box.
- What does Muzukashii mean?
- Muzukashii (難しい) is Japanese for difficult. The difficulty tiers are named Ichi, Ni and San.
- Is there a daily Sudoku puzzle?
- Yes. The Daily Challenge is one puzzle a day, the same for everyone, with a calendar that tracks your streak.
- Is Muzukashii free?
- Yes. The whole game, including every puzzle, the Daily Challenge, Game Center and iCloud sync, is free to play. An optional one-time Supporter Edition adds cosmetic extras like dark mode and an alternate app icon.
- Which devices can I play on?
- iPhone, iPad, Mac and Apple Vision Pro, with progress synced through iCloud.
A single one-time tip.
The app stays fully playable without it. Nothing behind the gate is required to solve a puzzle. Adds dark mode, an alternate app icon, a custom splash and a supporter badge, with more to come at no extra cost.
Get Muzukashii
