Difficult Sudoku Five Logic Puzzles (Vol 1)
Chapter 9: Twenty-Four Difficult (DiffLev 9) Sudoku-5C Puzzles (numbers 145-168)
- Step-by-step instructions for solving Puzzle 145, (18/25) Diff: 9/2.111A.1245
- Step-by-step instructions for solving Puzzle 146, (19/25) Diff: 9/A.2211.2235
- Step-by-step instructions for solving Puzzle 147, (19/25) Diff: 9/A.1111.1463
- Step-by-step instructions for solving Puzzle 148, (19/25) Diff: 9/2.2212.2422
- Step-by-step instructions for solving Puzzle 149, (19/25) Diff: 9/2.2211.1244
- Step-by-step instructions for solving Puzzle 150, (19/25) Diff: 9/2.2111.3432
- Step-by-step instructions for solving Puzzle 151, (20/25) Diff: 9/A.2112.2272
- Step-by-step instructions for solving Puzzle 152, (20/25) Diff: 9/A.1113.4441
- Step-by-step instructions for solving Puzzle 153, (20/25) Diff: 9/3.2212.2422
- Step-by-step instructions for solving Puzzle 154, (20/25) Diff: 9/3.211A.1245
- Step-by-step instructions for solving Puzzle 155, (20/25) Diff: 9/3.1113.2351
- Step-by-step instructions for solving Puzzle 156, (20/25) Diff: 9/3.1111.3361
- Step-by-step instructions for solving Puzzle 157, (20/25) Diff: 9/2.2322.1242
- Step-by-step instructions for solving Puzzle 158, (20/25) Diff: 9/2.2322.1242
- Step-by-step instructions for solving Puzzle 159, (20/25) Diff: 9/2.2111.2335
- Step-by-step instructions for solving Puzzle 160, (20/25) Diff: 9/2.1112.3532
- Step-by-step instructions for solving Puzzle 161, (20/25) Diff: 9/1.3112.1137
- Step-by-step instructions for solving Puzzle 162, (20/25) Diff: 9/1.3111.3361
- Step-by-step instructions for solving Puzzle 163, (20/25) Diff: 9/1.2322.2242
- Step-by-step instructions for solving Puzzle 164, (20/25) Diff: 9/1.12A2.3442
- Step-by-step instructions for solving Puzzle 165, (20/25) Diff: 9/1.12A2.3424
- Step-by-step instructions for solving Puzzle 166, (20/25) Diff: 9/1.1232.3422
- Step-by-step instructions for solving Puzzle 167, (20/25) Diff: 9/1.11A1.3552
- Step-by-step instructions for solving Puzzle 168, (20/25) Diff: 9/1.11A1.3552