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53 page downloadable PDF book containing 336 Hadoku puzzles in very easy to very hard difficulty levels.


  • Added: Jun 02, 2014
  • Number of pages: 53
  • File format: PDF
  • Printable on: A4 and Letter
  • Language: English
  • ID: 100093


  • Puzzle types: Hadoku
  • Number of puzzles: 336
  • Difficulty levels: Very easy to very hard

Editorial review

Hadoku puzzles are like Irregular Sudoku - with a twist. A small change of the rules creates an all new game with puzzles ranging from very easy to extremely challenging even in the smaller grids. Hadoku uses the same rules as Ripple Effect and Hakyuu, but have smaller grids and are more interesting and usually more difficult to solve.

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