Variations on Difficult Sudoku-by5 Logic Puzzles (Vol 1)
Chapter 5: Eight Difficult Education-Xtreme Puzzles (numbers 17-24)
- Step-by-step instructions for solving Puzzle 17, (228/369) Diff: 10/99.9999.8973
- Step-by-step instructions for solving Puzzle 18, (237/369) Diff: 10/99.9996.9994
- Step-by-step instructions for solving Puzzle 19, (245/369) Diff: 11/999.9999.9651
- Step-by-step instructions for solving Puzzle 20, (249/369) Diff: 11/999.9999.9677
- Step-by-step instructions for solving Puzzle 21, (248/369) Diff: 12/9999.9999.9922
- Step-by-step instructions for solving Puzzle 22, (238/369) Diff: 14/99.9999.9935.6971
- Step-by-step instructions for solving Puzzle 23, (255/369) Diff: 14/99.9999.9977.6595
- Step-by-step instructions for solving Puzzle 24, (258/369) Diff: 14/99.9999.9999.9941