Sudoku X Book 1. The Only Puzzle with the 'X' Factor, Paperback/Christopher Monckton

100 all new puzzles that feature diagonal game play, exclusive to Sudoku X. Publisher: Headline Publishing Group Author(s): Christopher Monckton Illustration(s): 100 puzzles Number of pages: 160 Publication date: 2005 Dimensions: 196 x 129 x 11 Cover type: Paperback / softback