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Sudoku 401

Sudoku 401
  • #: 163179
  • Price: $7.99 In Apple Store
  • Category: Games
  • Updated: 2016-04-18
  • Current Version: 3.0.8
  • 3.0.8
  • Size: 2.20 MB
  • Language: English
  • Seller: River Past Corporation
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 2.0 or later
  • © River Past Corporation
  •  Add to Favorite apps



If you want to improve your Sudoku skills, Sudoku 401 will help you learn and play.

Sudoku 401 is a Sudoku game, a generator, a solver, and a teacher/tutor.

First, it is a serious Sudoku game.

- Puzzle generator for unlimited play. You will never see the same game twice.

- Clean and simple game board, so you can focus on the playing instead of being distracted by colors and/or shapes.

- Ability to enter the game manually, copy from newspaper, books, or other software.

- Tap on a clue to highlight potential locations for the number. Tap again to go back to normal viewing.

- Automatic or manual pencilmarks, which can be switched during the game play with one tap.

- Automatically saves the game when you leave, ability to continue when you come back.

- Option to use either symmetrically or non-symmetrical Sudoku boards.

- Option to show error.

Even more, it teaches you the logic and techniques of Sudoku, with its multi-step teaching system. All of the techniques are human logic, not computer brutal force.

- Difficulty level is defined by the techniques used, not by number of clues.

- Beginner: Full House, Hidden Single and Naked Single.

- Moderate: Hidden and Naked Pair, Locked Candidates.

- Challenging: Hidden and Naked Triple and Quad, X-Wing.

- Difficult: Swordfish, Jellyfish, XY-Wing and Finned X-Wing.

- Expert: Squirmbag, Finned Swordfish and Jellyfish (that also includes Fishy Cycle, Sashimi Fish and Turbot Fish), XYZ-Wing and WXYZ-Wing.

- Extreme: ALS-XZ (Almost locked set) and Finned Squirmbag.

Check out our screenshots to see how the teaching works.

What's New in Version 3.0.8

Minor color changes.

iPhone Screenshots

Sudoku 401 iPhone Screenshot 1
Sudoku 401 iPhone Screenshot 2
Sudoku 401 iPhone Screenshot 3

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The information may be outdated (2017-03-08 09:32:14). For actual information go to iTunes

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