Sudoku4ever Free

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Description

Sudoku4ever offers unlimited game play, eight Sudoku variants, eight difficulty levels, world-class hint engine, game statistics and much more.

Our main focus for this application is:

  • to deliver unlimited game play with high quality Sudoku puzzles that keep you entertained for as long as you wish
  • to keep the user interface as easy as possible without cutting down on functionality
  • to offer good usability on all Android devices regardless of screen size and resolution

Features

  • Eight different Sudoku variants: Classic & Jigsaw puzzles (aka Squiggly), Asterisk-, Centerdot-, Color-, Hyper-, Percent- & X-Sudokus
  • Eight difficulty levels: very easy, easy, moderate, advanced, hard, very hard, fiendish, nightmare
  • Six input methods: digit first, cell first, mixed, Andoku cell first, Andoku digit first, popup
  • Pencil marks with auto set or auto erase
  • Persistent undo/redo
  • Highlighting of selected digits and pencil marks
  • Highlighting of incorrect digits
  • Highlighting of completed digits
  • Bookmarks
  • Auto save
  • Coloring: coloring techniques are supported by a unique coloring mode for expert players
  • Statistics: keep track of your records for each difficulty level and for each Sudoku variant
  • Analysis functionality to rate the difficulty of a Sudoku puzzle and to get a detailed list of required solving techniques
  • Hints: the world's best hint engine with unique three-step on-board visualization, supporting the following solving techniques:
    - Full House
    - Hidden Single
    - Hidden Subset (Pair, Triple + Quad)
    - Naked Single
    - Naked Subset (Pair, Triple + Quad)
    - Locked Candidates (Pointing + Claiming)
    - X-Wing (Regular, Finned + Sashimi)
    - Swordfish (Regular, Finned + Sashimi)
    - Jellyfish (Regular, Finned + Sashimi)
    - XY-, XYZ-, WXYZ-, VWXYZ-, UVWXYZ-, TUVWXYZ-, STUVWXYZ-, RSTUVWXYZ-Wing
    - W-Wing
    - Almost Locked Candidates (Pair, Triple + Quad)
    - Avoidable Rectangle (type 1 + 2)
    - Hidden Unique Rectangle
    - Uniqueness Test (type 1, 2, 3, 4 + 5)
    - BUG+1, BUG+2, BUG+3 and BUG+4
    - Aligned Pair + Triple Exclusion
    - Sue de Coq
    - ALS-XZ, ALS-XY-Wing
    - Remote Pairs
    - Bidirectional Cycles
    - Forcing X-Chains
    - Forcing XY-Chains
    - Nishio Forcing Chains
    - Double Forcing Chains
    - Contradiction Forcing Chains
    - Region Forcing Chains
    - Cell Forcing Chains
  • The free version of this app is supported by unobtrusive ads

Screenshots

Start Screen

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Play Screen

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Hint Engine (Classic Sudoku)

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Hint Engine (Jigsaw Puzzle)

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Analysis Function (Hyper Sudoku)

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Coloring Mode

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You can download the application:

  • from Google Play on your mobile device (search for Sudoku4ever)
  • from Google Play on the web: Sudoku4ever Free
  • by scanning the following QR Code (Google Play):
    QR Code
  • from the Amazon Appstore for Android:

    Amazon Appstore