Will Shortz Presents Hard Sudoku Volume 1: 200 Challenging Puzzles
St. Martin's Griffin, February 2018. Trade Paperback. The first in a new series: hard puzzles for serious sudoku solvers. Do you have what it takes? These 200 challenging sudoku puzzles from Will Shortz will keep your mind sharp! Features: - 200 hard puzzles - Big grids for easy solving -..... More




