Volume 1
4 hard sudoku puzzles with solutions
Volume 2
4 hard sudoku puzzles with solutions
Volume 3
4 hard sudoku puzzles with solutions
Volume 4
4 hard sudoku puzzles with solutions
Volume 5
4 hard sudoku puzzles with solutions
How to Solve Hard Sudoku
Hard Sudoku puzzles are perfect for experienced players. Here are some tips to help you solve these puzzles:
Start by filling in the obvious numbers - look for rows, columns, or boxes with many numbers already filled
Use the process of elimination - if a number can only go in one place, put it there
Look for patterns and use advanced techniques like naked pairs or hidden singles
Print Instructions
Click on any volume above to view the 4 puzzles. Each puzzle page includes solutions that you can toggle on or off. Use your browser's print function (Ctrl+P or Cmd+P) to print the puzzles.