Difficult Sudoku-by5 Logic Puzzles (Vol 1)
Chapter 6: Sixteen Difficult (DiffLev 12) Sudoku-by5 Puzzles (numbers 49-64)
- Step-by-step instructions for solving Puzzle 49, (217/369) Diff: 12/9999.9223.5761
- Step-by-step instructions for solving Puzzle 50, (238/369) Diff: 12/9999.9999.8652
- Step-by-step instructions for solving Puzzle 51, (239/369) Diff: 12/9999.9999.5793
- Step-by-step instructions for solving Puzzle 52, (240/369) Diff: 12/9999.9999.9952
- Step-by-step instructions for solving Puzzle 53, (240/369) Diff: 12/9999.9999.3263
- Step-by-step instructions for solving Puzzle 54, (246/369) Diff: 12/9999.9999.9995
- Step-by-step instructions for solving Puzzle 55, (246/369) Diff: 12/9999.9999.9643
- Step-by-step instructions for solving Puzzle 56, (251/369) Diff: 12/9999.9999.9985
- Step-by-step instructions for solving Puzzle 57, (253/369) Diff: 12/9999.9999.9991
- Step-by-step instructions for solving Puzzle 58, (256/369) Diff: 12/9999.9999.9993
- Step-by-step instructions for solving Puzzle 59, (257/369) Diff: 12/9999.9999.9951
- Step-by-step instructions for solving Puzzle 60, (260/369) Diff: 12/9999.9999.9999
- Step-by-step instructions for solving Puzzle 61, (260/369) Diff: 12/9999.9999.9996
- Step-by-step instructions for solving Puzzle 62, (261/369) Diff: 12/9999.9999.9842
- Step-by-step instructions for solving Puzzle 63, (264/369) Diff: 12/9999.9999.9995
- Step-by-step instructions for solving Puzzle 64, (266/369) Diff: 12/9999.9999.9992