Difficult Sudoku Seven Logic Puzzles (Vol 1)

Chapter 7: Fourteen Difficult (DiffLev 9-10) Sudoku-7B-2V Puzzles (numbers 57-70)

• Step-by-step instructions for solving Puzzle 57, (38/49)   Diff: 9/5.7333.5363
• Step-by-step instructions for solving Puzzle 58, (39/49)   Diff: 9/7.3454.5542
• Step-by-step instructions for solving Puzzle 59, (39/49)   Diff: 9/4.7334.4455
• Step-by-step instructions for solving Puzzle 60, (39/49)   Diff: 9/2.3335.6566
• Step-by-step instructions for solving Puzzle 61, (35/49)   Diff: 10/63.3235.4441
• Step-by-step instructions for solving Puzzle 62, (35/49)   Diff: 10/44.1344.2364
• Step-by-step instructions for solving Puzzle 63, (38/49)   Diff: 10/53.4122.5961
• Step-by-step instructions for solving Puzzle 64, (39/49)   Diff: 10/81.1322.4774
• Step-by-step instructions for solving Puzzle 65, (39/49)   Diff: 10/54.3332.2386
• Step-by-step instructions for solving Puzzle 66, (39/49)   Diff: 10/44.1255.3483
• Step-by-step instructions for solving Puzzle 67, (39/49)   Diff: 10/34.5442.2672
• Step-by-step instructions for solving Puzzle 68, (40/49)   Diff: 10/45.5543.3542
• Step-by-step instructions for solving Puzzle 69, (40/49)   Diff: 10/33.3225.5691
• Step-by-step instructions for solving Puzzle 70, (41/49)   Diff: 10/45.4523.6354