Difficult Sudoku Five Logic Puzzles (Vol 1)
Chapter 3: Twenty-Four Difficult (DiffLev 9) Sudoku-5 Puzzles (numbers 1-24)
- Step-by-step instructions for solving Puzzle 1, (18/25) Diff: 9/2.21A1.1352
- Step-by-step instructions for solving Puzzle 2, (19/25) Diff: 9/2.1211.3351
- Step-by-step instructions for solving Puzzle 3, (20/25) Diff: 9/3.2212.2422
- Step-by-step instructions for solving Puzzle 4, (20/25) Diff: 9/3.2211.2441
- Step-by-step instructions for solving Puzzle 5, (20/25) Diff: 9/3.2112.2351
- Step-by-step instructions for solving Puzzle 6, (20/25) Diff: 9/3.2111.3351
- Step-by-step instructions for solving Puzzle 7, (20/25) Diff: 9/2.2322.2232
- Step-by-step instructions for solving Puzzle 8, (20/25) Diff: 9/2.2223.3222
- Step-by-step instructions for solving Puzzle 9, (20/25) Diff: 9/2.2223.3222
- Step-by-step instructions for solving Puzzle 10, (20/25) Diff: 9/2.2221.2252
- Step-by-step instructions for solving Puzzle 11, (20/25) Diff: 9/2.2212.1361
- Step-by-step instructions for solving Puzzle 12, (20/25) Diff: 9/2.2212.1235
- Step-by-step instructions for solving Puzzle 13, (20/25) Diff: 9/2.2211.3432
- Step-by-step instructions for solving Puzzle 14, (20/25) Diff: 9/2.1321.1451
- Step-by-step instructions for solving Puzzle 15, (20/25) Diff: 9/2.1321.1451
- Step-by-step instructions for solving Puzzle 16, (20/25) Diff: 9/2.1211.2443
- Step-by-step instructions for solving Puzzle 17, (20/25) Diff: 9/1.2112.2353
- Step-by-step instructions for solving Puzzle 18, (20/25) Diff: 9/1.1222.2442
- Step-by-step instructions for solving Puzzle 19, (20/25) Diff: 9/1.1221.1354
- Step-by-step instructions for solving Puzzle 20, (20/25) Diff: 9/1.1211.1247
- Step-by-step instructions for solving Puzzle 21, (20/25) Diff: 9/1.1111.3561
- Step-by-step instructions for solving Puzzle 22, (20/25) Diff: 9/1.1111.2481
- Step-by-step instructions for solving Puzzle 23, (21/25) Diff: 9/2.3211.1245
- Step-by-step instructions for solving Puzzle 24, (21/25) Diff: 9/2.1212.3343