Difficult Sudoku Seven Logic Puzzles (Vol 1)

Chapter 8: Twelve Difficult (DiffLev 11-12) Sudoku-7B-2V Puzzles (numbers 71-82)

• Step-by-step instructions for solving Puzzle 71, (36/49)   Diff: 11/31A.2212.4794
• Step-by-step instructions for solving Puzzle 72, (39/49)   Diff: 11/564.2322.4443
• Step-by-step instructions for solving Puzzle 73, (39/49)   Diff: 11/442.2123.4467
• Step-by-step instructions for solving Puzzle 74, (39/49)   Diff: 11/432.2464.6233
• Step-by-step instructions for solving Puzzle 75, (39/49)   Diff: 11/343.3322.6355
• Step-by-step instructions for solving Puzzle 76, (40/49)   Diff: 11/221.AA14.5794
• Step-by-step instructions for solving Puzzle 77, (41/49)   Diff: 11/2AA.2325.5983
• Step-by-step instructions for solving Puzzle 78, (38/49)   Diff: 12/3212.2324.4491
• Step-by-step instructions for solving Puzzle 79, (39/49)   Diff: 12/4433.4421.3344
• Step-by-step instructions for solving Puzzle 80, (39/49)   Diff: 12/3433.2122.2591
• Step-by-step instructions for solving Puzzle 81, (39/49)   Diff: 12/22A1.1357.9431
• Step-by-step instructions for solving Puzzle 82, (40/49)   Diff: 12/1122.2233.4767