Kaodoku

Puzzle

Free · In‑App Purchases · Designed for iPad

Kaodokus are a new variation of sudoku with symbols that are only partially given. Originally invented for Belgian Mensa magazine Commensal, kaodokus offer a lot more variety than ordinary sudokus. Instead of numbers, the cells contain smiley faces which can have three possible shapes and three possible mouths. Each of the nine unique combinations has to appear exactly once in each column, row or other marked area just like in a normal sudoku. The big novelty is that in some cells only the mouth or shape is given, leaving the missing part for you to find. You can even ask for grids that initially don't include a single full symbol! This makes the puzzle experience a lot richer, requiring complex strategies combining bits and pieces of information in original ways. Features: - Normal grids completely free, with as many randomly generated puzzles as you like in many different levels of difficulty. - With a single in-app purchase, you can unlock more complex puzzles with extra diagonals, gray squares and chaotic grids which require even deeper thinking combining all those intersecting regions. - Sophisticated hint system which actually suggests possible ways forward using step by step logic. Especially in the beginning this is very helpful since even the easiest kaodoku grids can be daunting for those not used to them. - Activate pencil notes in the settings so you can zoom in and freely draw whatever doodles you like, just like you would on paper. - Alternatively, you can also use standard candidate marks to keep track of the possible symbols in each cell. In very difficult puzzles, the hints function will take these candidate marks into account if they are the only way of making progress. - Share puzzles with others, export them in pdf or png format, or print them on paper to solve them the old-fashioned way. Feel free to publish puzzles in magazines or on websites, as long as you don't remove the kaodoku web address.

  • 5.0
    out of 5
    1 Ratings

Minor cosmetic changes

The developer, Michel Colman, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    • Seller
      • Michel Colman
    • Size
      • 4.4 MB
    • Category
      • Puzzle
    • Compatibility
      Requires iOS 9.0 or later.
      • iPhone
        Requires iOS 9.0 or later.
        • ⁨iPhone 5S⁩
        • ⁨iPhone 6⁩
        • ⁨iPhone 6 Plus⁩
        • ⁨iPhone 6S⁩
        • ⁨iPhone 6S Plus⁩
        • ⁨iPhone SE (1st generation)⁩
        • ⁨iPhone 7⁩
        • ⁨iPhone 7 Plus⁩
        • ⁨iPhone 8⁩
        • ⁨iPhone 8 Plus⁩
        • ⁨iPhone X⁩
        • ⁨iPhone XS⁩
        • ⁨iPhone XS Max⁩
        • ⁨iPhone XR⁩
        • ⁨iPhone 11⁩
        • ⁨iPhone 11 Pro⁩
        • ⁨iPhone 11 Pro Max⁩
        • ⁨iPhone SE (2nd generation)⁩
        • ⁨iPhone 12 mini⁩
        • ⁨iPhone 12⁩
        • ⁨iPhone 12 Pro⁩
        • ⁨iPhone 12 Pro Max⁩
        • ⁨iPhone 13 Pro⁩
        • ⁨iPhone 13 Pro Max⁩
        • ⁨iPhone 13 mini⁩
        • ⁨iPhone 13⁩
        • ⁨iPhone SE (3rd generation)⁩
        • ⁨iPhone 14⁩
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        • ⁨iPhone 16 Pro Max⁩
        • ⁨iPhone 16e⁩
        • ⁨iPhone 17 Pro⁩
        • ⁨iPhone 17 Pro Max⁩
        • ⁨iPhone 17⁩
        • ⁨iPhone Air⁩
        • ⁨iPhone 17e⁩
      • iPad
        Requires iPadOS 9.0 or later.
        • ⁨iPad Air⁩
        • ⁨iPad Air Wi‑Fi + Cellular⁩
        • ⁨iPad mini 2⁩
        • ⁨iPad mini 2 Wi‑Fi + Cellular⁩
        • ⁨iPad Air 2⁩
        • ⁨iPad Air 2 Wi‑Fi + Cellular⁩
        • ⁨iPad mini 3⁩
        • ⁨iPad mini 3 Wi‑Fi + Cellular⁩
        • ⁨iPad mini 4⁩
        • ⁨iPad mini 4 Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (12.9‑inch)⁩
        • ⁨iPad Pro (12.9‑inch) Wi-Fi + Cellular⁩
        • ⁨iPad Pro (9.7‑inch)⁩
        • ⁨iPad Pro (9.7‑inch) Wi‑Fi + Cellular⁩
        • ⁨iPad (5th generation)⁩
        • ⁨iPad (5th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (12.9‑inch) (2nd generation)⁩
        • ⁨iPad Pro (12.9‑inch) (2nd generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (10.5‑inch)⁩
        • ⁨iPad Pro (10.5‑inch) Wi‑Fi + Cellular⁩
        • ⁨iPad (6th generation)⁩
        • ⁨iPad (6th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (11‑inch)⁩
        • ⁨iPad Pro (11‑inch) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (12.9‑inch) (3rd generation)⁩
        • ⁨iPad Pro (12.9‑inch) (3rd generation) Wi‑Fi + Cellular⁩
        • ⁨iPad mini (5th generation)⁩
        • ⁨iPad mini (5th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Air (3rd generation)⁩
        • ⁨iPad Air (3rd generation) Wi‑Fi + Cellular⁩
        • ⁨iPad (7th generation)⁩
        • ⁨iPad (7th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (11‑inch) (2nd generation)⁩
        • ⁨iPad Pro (11‑inch) (2nd generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (12.9‑inch) (4th generation)⁩
        • ⁨iPad Pro (12.9‑inch) (4th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Air (4th generation)⁩
        • ⁨iPad Air (4th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad (8th generation)⁩
        • ⁨iPad (8th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (11-inch) (3rd generation)⁩
        • ⁨iPad Pro (11-inch) (3rd generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (12.9-inch) (5th generation)⁩
        • ⁨iPad Pro (12.9-inch) (5th generation) Wi-Fi + Cellular⁩
        • ⁨iPad mini (6th generation)⁩
        • ⁨iPad mini (6th generation) Wi-Fi + Cellular⁩
        • ⁨iPad (9th generation)⁩
        • ⁨iPad (9th generation) Wi-Fi + Cellular⁩
        • ⁨iPad Air (5th generation)⁩
        • ⁨iPad Air (5th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad (10th generation)⁩
        • ⁨iPad (10th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (11‑inch) (4th generation)⁩
        • ⁨iPad Pro (11‑inch) (4th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Pro (12.9‑inch) (6th generation)⁩
        • ⁨iPad Pro (12.9‑inch) (6th generation) Wi‑Fi + Cellular⁩
        • ⁨iPad Air 11-inch (M2)⁩
        • ⁨iPad Air 11-inch (M2) Wi-Fi + Cellular⁩
        • ⁨iPad Air 13-inch (M2)⁩
        • ⁨iPad Air 13-inch (M2) Wi-Fi + Cellular⁩
        • ⁨iPad Pro 11-inch (M4)⁩
        • ⁨iPad Pro 11-inch (M4) Wi-Fi + Cellular⁩
        • ⁨iPad Pro 13-inch (M4)⁩
        • ⁨iPad Pro 13-inch (M4) Wi-Fi + Cellular⁩
        • ⁨iPad mini (A17 Pro)⁩
        • ⁨iPad mini (A17 Pro) Wi-Fi + Cellular⁩
        • ⁨iPad (A16)⁩
        • ⁨iPad (A16) Wi-Fi + Cellular⁩
        • ⁨iPad Air 11-inch (M3)⁩
        • ⁨iPad Air 11-inch (M3) Wi-Fi + Cellular⁩
        • ⁨iPad Air 13-inch (M3)⁩
        • ⁨iPad Air 13-inch (M3) Wi-Fi + Cellular⁩
        • ⁨iPad Pro 11-inch (M5)⁩
        • ⁨iPad Pro 11-inch (M5) Wi-Fi + Cellular⁩
        • ⁨iPad Pro 13-inch (M5)⁩
        • ⁨iPad Pro 13-inch (M5) Wi-Fi + Cellular⁩
        • ⁨iPad Air 11-inch (M4)⁩
        • ⁨iPad Air 11-inch (M4) Wi-Fi + Cellular⁩
        • ⁨iPad Air 13-inch (M4)⁩
        • ⁨iPad Air 13-inch (M4) Wi-Fi + Cellular⁩
      • iPod touch
        Requires iOS 9.0 or later.
        • ⁨iPod touch (6th generation)⁩
        • ⁨iPod touch (7th generation)⁩
      • Mac
        Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
      • Apple Vision
        Requires visionOS 1.0 or later.
    • Languages
      • English
    • Age Rating
      4+
    • In-App Purchases
      Yes
    • Copyright
      • © 2021 Michel Colman