Publisher's Synopsis
100 Hard - Extreme SUDOKU PUZZLES that will CHALLENGE you to the CORE.
30 Hard, 25 Brutal, 25 Diabolic and 20 Extreme 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 for all puzzles.
- WARNING! The EXTREME puzzles are best solved by using a computer, not a human brain.
- 2-colored, big and easy to read solutions at the end of the book.
