Devious Sudoku: 200 Very Hard Puzzles Will Shortz Presents... Will Shortz 2012 Paperback Preț: 72.13 lei 22-36 zile
The Puzzle Doctor: 150 Easy to Hard Logic Puzzles That Make You Smarter Will Shortz Presents... Autor Tetsuya Miyamoto et al. 30 apr 2011 Paperback Preț: 96.45 lei 22-36 zile
Will Shortz Presents Hot Sudoku: 200 Very Hard Puzzles Will Shortz Presents... Editat de Will Shortz 31 iul 2010 Paperback Preț: 81.87 lei 22-36 zile