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Challenge AI

$0.99 · Designed for iPad. Not verified for macOS.

New updates. Challenge the AI in a fresh and strategic board game experience built for quick matches and deep thinking. Three Six Nine is easy to start, but hard to master. Every move matters as you build lines, block opportunities, and fight for the best score before the board reaches its final state. The rules are simple, but the strategy keeps evolving. Why players like it: Challenge the AI anytime with no waiting. No login required — open the app and play. No pop-up ads interrupting your game. Simple rules with surprising depth. Fast matches that still reward planning and smart tactics. Whether you want a quick brain workout or a serious score challenge, this game gives you a clean and focused experience with no unnecessary friction. Just open, think, and play.

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Added sound effect and difficulties levels.

The developer, KWONG Chung Kuen, 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
    KWONG Chung Kuen
    Size
    3.9 MB
    Category
    Board
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 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
    Age Rating
    4+
    Copyright
    © 2026 Winter Forest