Difficult Sudoku Seven Logic Puzzles (Vol 1)

Chapter 13: Fourteen Difficult (DiffLev 9-10) Sudoku-7C-2V Puzzles (numbers 137-150)

• Step-by-step instructions for solving Puzzle 137, (39/49)   Diff: 9/3.6552.5472
• Step-by-step instructions for solving Puzzle 138, (39/49)   Diff: 9/2.3445.4755
• Step-by-step instructions for solving Puzzle 139, (39/49)   Diff: 9/2.2334.5776
• Step-by-step instructions for solving Puzzle 140, (40/49)   Diff: 9/5.8312.4592
• Step-by-step instructions for solving Puzzle 141, (40/49)   Diff: 9/5.4442.5664
• Step-by-step instructions for solving Puzzle 142, (40/49)   Diff: 9/1.1257.7691
• Step-by-step instructions for solving Puzzle 143, (41/49)   Diff: 9/2.2234.5689
• Step-by-step instructions for solving Puzzle 144, (38/49)   Diff: 10/44.4344.3741
• Step-by-step instructions for solving Puzzle 145, (38/49)   Diff: 10/43.2412.4864
• Step-by-step instructions for solving Puzzle 146, (38/49)   Diff: 10/21.1445.5942
• Step-by-step instructions for solving Puzzle 147, (38/49)   Diff: 10/11.AA13.5994
• Step-by-step instructions for solving Puzzle 148, (40/49)   Diff: 10/41.2134.6693
• Step-by-step instructions for solving Puzzle 149, (41/49)   Diff: 10/42.5332.5863
• Step-by-step instructions for solving Puzzle 150, (42/49)   Diff: 10/22.2236.5587