Variations on Advanced Sudoku Logic Puzzles (Vol 1)
Chapter 46: Four Medium Sudoku-16 Puzzles (numbers 153-156)
- Step-by-step instructions for solving Puzzle 153, (112/256) Diff: 5/9.9992
- Step-by-step instructions for solving Puzzle 154, (126/256) Diff: 8/9999.9994
- Step-by-step instructions for solving Puzzle 155, (128/256) Diff: 8/9999.9998
- Step-by-step instructions for solving Puzzle 156, (133/256) Diff: 8/9999.9996