Difficult Sudoku Five Logic Puzzles (Vol 1)
Chapter 5: Twenty-Four Difficult (DiffLev 9) Sudoku-5-Spot Puzzles (numbers 49-72)
- Step-by-step instructions for solving Puzzle 49, (18/25) Diff: 9/1.1211.4431
- Step-by-step instructions for solving Puzzle 50, (20/25) Diff: 9/1.2111.5441
- Step-by-step instructions for solving Puzzle 51, (21/25) Diff: 9/3.2212.2243
- Step-by-step instructions for solving Puzzle 52, (21/25) Diff: 9/3.2212.2243
- Step-by-step instructions for solving Puzzle 53, (21/25) Diff: 9/3.2212.2243
- Step-by-step instructions for solving Puzzle 54, (21/25) Diff: 9/3.2212.2243
- Step-by-step instructions for solving Puzzle 55, (21/25) Diff: 9/2.3211.4431
- Step-by-step instructions for solving Puzzle 56, (21/25) Diff: 9/2.3211.4431
- Step-by-step instructions for solving Puzzle 57, (21/25) Diff: 9/2.3211.4431
- Step-by-step instructions for solving Puzzle 58, (21/25) Diff: 9/2.3211.4431
- Step-by-step instructions for solving Puzzle 59, (21/25) Diff: 9/2.3211.4431
- Step-by-step instructions for solving Puzzle 60, (21/25) Diff: 9/2.2112.2362
- Step-by-step instructions for solving Puzzle 61, (21/25) Diff: 9/2.2112.2362
- Step-by-step instructions for solving Puzzle 62, (21/25) Diff: 9/2.2112.2362
- Step-by-step instructions for solving Puzzle 63, (21/25) Diff: 9/2.2112.2362
- Step-by-step instructions for solving Puzzle 64, (21/25) Diff: 9/2.2112.2362
- Step-by-step instructions for solving Puzzle 65, (21/25) Diff: 9/2.2112.2362
- Step-by-step instructions for solving Puzzle 66, (21/25) Diff: 9/1.2112.2372
- Step-by-step instructions for solving Puzzle 67, (21/25) Diff: 9/1.2112.2372
- Step-by-step instructions for solving Puzzle 68, (21/25) Diff: 9/1.2112.2372
- Step-by-step instructions for solving Puzzle 69, (21/25) Diff: 9/1.1111.2473
- Step-by-step instructions for solving Puzzle 70, (21/25) Diff: 9/1.1111.2473
- Step-by-step instructions for solving Puzzle 71, (21/25) Diff: 9/1.1111.2473
- Step-by-step instructions for solving Puzzle 72, (21/25) Diff: 9/1.1111.2473