Stillgrid icon
Stillgrid icon

Stillgrid

Free online sudoku with classic, X-Sudoku, jigsaw, and killer variants, where difficulty is graded by the solving techniques each puzzle actually requires.

Classic Sudoku

Cost / License

  • Free
  • Open Source (MIT)

Application type

Platforms

  • Online
X-sudoku
Jigsaw Sudoku
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Features

  1.  No registration required
  2.  Works Offline
  3.  Single player
  4.  Ad-free
  5.  React
  6.  Rust

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Stillgrid information

  • Developed by

    CA flagrenegadecitizen

  • Licensing

    Open Source (MIT) and Free product.

  • Written in

  • Alternatives

    3 alternatives listed

  • Supported Languages

    • English

AlternativeTo Category

Games

GitHub repository

  •  0 Stars
  •  0 Forks
  •  0 Open Issues
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Stillgrid was added to AlternativeTo by renegadecitizen on and this page was last updated .
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What is Stillgrid?

Stillgrid is a free, open-source sudoku site with a calm, distraction-free design. It plays classic sudoku plus X-Sudoku, Jigsaw, and Killer variants at 6×6 and 9×9 (16×16 for classic and X). Difficulty is honest — graded by the techniques a puzzle actually requires (singles ? pairs ? X-Wing ? Swordfish ? chains), not clue count. Daily challenge with streaks, works offline as a PWA, no ads, no account needed, all game state stays on your device.

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