Medium - Hard SUDOKU PUZZLES 4

100 Medium - Hard SUDOKU PUZZLES that will have you COMING back for more. Premium Color Book.30 Medium, 40 Tricky and 30 Hard puzzles, so get READY, SET, SOLVE!Big sudoku boards with plenty of room to write the solution candidates.LARGE PRINT.Guarantied proper SUDOKU puzzles with only one solution per puzzle.No guessing needed.Each puzzle increase in difficulty as you progress, which makes them challenging and fun to solve.Advanced strategies are needed to solve the tricky and hard puzzles.2-colored, big and easy to read solutions at the end of the book. Read more