Ruffdoku: Queens Logic Puzzle

Daily brain game: cats vs dogs

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Cat person or dog person? Either way, Ruffdoku is your new daily logic fix. Place exactly one adorable pet on the board so that every color region, every row, and every column has just one — and no two pets ever touch, not even diagonally. Every puzzle is solvable by pure logic. No guessing, no luck — just the satisfying click of deduction. • A fresh DAILY CHALLENGE every day — build your streak and earn Perfect Solve badges • 100 hand-crafted LEVELS that grow from cozy 4×4 boards to brain-bending 10×10 • Pick your side: Team Meow or Team Woof — switch anytime • Mind your treats: three per puzzle, lose one for every wrong placement • Beautiful, share-worthy result cards to show off your solve • Quick to learn, hard to put down — perfect for a coffee break No sign-up. No clutter. Just you, the board, and very good pets. Can you keep your daily streak alive? Start solving.

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Your daily Ruffdoku is now the main event: - Open straight into one shared Daily Challenge, with a fresh puzzle every day. - Build your daily streak and see when tomorrow's puzzle arrives. - Optional reminders help you return for the next challenge. - Replay after clearing to improve your personal best without changing your official result. - The first three Daily clears remain ad-free. Thanks for playing!

The developer, WANG JIN OH, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers

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
  • WANG JIN OH
Size
  • 21.6 MB
Category
  • Puzzle
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 2 more
  • English, Japanese, Korean
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © HOL4B