Sudoku 4 types of heavy and very difficult levels. 400 collection puzzles.: Lighthouse Battleship - Yajilin - Calcudoku - Tridoku. Lots of hard and very hard puzzles for sharpness of mind (plus 500 puzzles that can be printed). (Ultimate Classic Sudoku, #8)

by Basford Holmes

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  • ISBN10 1796365238
  • ISBN13 9781796365238
  • Publish Date 7 February 2019
  • Publish Status Active
  • Imprint Independently Published
  • Format Paperback (US Trade)
  • Pages 106
  • Language English