400 Calcudoku HARD - VERY HARD puzzles 9 x 9 + BONUS 250 classic sudoku: Sudoku hard - very hard puzzles and classic sudoku 9 x 9 very hard levels (Calcudoku Classic Sudoku, #8)

by Basford Holmes

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  • ISBN10 1724193635
  • ISBN13 9781724193636
  • Publish Date 30 September 2018
  • Publish Status Active
  • Imprint Independently Published
  • Format Paperback (US Trade)
  • Pages 106
  • Language English