Difficult Sudoku Five Logic Puzzles (Vol 1)
Chapter 4: Twenty-Four Difficult (DiffLev 10) Sudoku-5 Puzzles (numbers 25-48)
- Step-by-step instructions for solving Puzzle 25, (19/25) Diff: 10/11.2212.2332
- Step-by-step instructions for solving Puzzle 26, (19/25) Diff: 10/11.1122.1361
- Step-by-step instructions for solving Puzzle 27, (20/25) Diff: 10/32.11A1.1352
- Step-by-step instructions for solving Puzzle 28, (20/25) Diff: 10/31.A112.2351
- Step-by-step instructions for solving Puzzle 29, (20/25) Diff: 10/31.21A1.1352
- Step-by-step instructions for solving Puzzle 30, (20/25) Diff: 10/31.2111.2432
- Step-by-step instructions for solving Puzzle 31, (20/25) Diff: 10/31.1111.3351
- Step-by-step instructions for solving Puzzle 32, (20/25) Diff: 10/31.1111.1434
- Step-by-step instructions for solving Puzzle 33, (20/25) Diff: 10/22.2111.1244
- Step-by-step instructions for solving Puzzle 34, (20/25) Diff: 10/21.1112.2352
- Step-by-step instructions for solving Puzzle 35, (20/25) Diff: 10/21.1112.2352
- Step-by-step instructions for solving Puzzle 36, (20/25) Diff: 10/21.1112.2352
- Step-by-step instructions for solving Puzzle 37, (20/25) Diff: 10/21.1111.3451
- Step-by-step instructions for solving Puzzle 38, (20/25) Diff: 10/11.2212.1235
- Step-by-step instructions for solving Puzzle 39, (20/25) Diff: 10/11.2212.1235
- Step-by-step instructions for solving Puzzle 40, (20/25) Diff: 10/11.2212.1235
- Step-by-step instructions for solving Puzzle 41, (20/25) Diff: 10/11.2211.2433
- Step-by-step instructions for solving Puzzle 42, (20/25) Diff: 10/11.2111.1354
- Step-by-step instructions for solving Puzzle 43, (20/25) Diff: 10/11.1221.3351
- Step-by-step instructions for solving Puzzle 44, (20/25) Diff: 10/11.11A1.2471
- Step-by-step instructions for solving Puzzle 45, (20/25) Diff: 10/11.1111.1445
- Step-by-step instructions for solving Puzzle 46, (21/25) Diff: 10/22.2111.1245
- Step-by-step instructions for solving Puzzle 47, (21/25) Diff: 10/22.2111.1245
- Step-by-step instructions for solving Puzzle 48, (21/25) Diff: 10/22.2111.1245