Easy Sudoku Six Logic Puzzles (Vol 1)
Chapter 10: Twenty-Two Easy (DiffLev 4) Sudoku-6up-UR-D Puzzles (numbers 169-190)
- Step-by-step instructions for solving Puzzle 169, (18/36) Diff: 4/7722
- Step-by-step instructions for solving Puzzle 170, (22/36) Diff: 4/7573
- Step-by-step instructions for solving Puzzle 171, (22/36) Diff: 4/6951
- Step-by-step instructions for solving Puzzle 172, (23/36) Diff: 4/8591
- Step-by-step instructions for solving Puzzle 173, (23/36) Diff: 4/7853
- Step-by-step instructions for solving Puzzle 174, (23/36) Diff: 4/7772
- Step-by-step instructions for solving Puzzle 175, (23/36) Diff: 4/5873
- Step-by-step instructions for solving Puzzle 176, (24/36) Diff: 4/7971
- Step-by-step instructions for solving Puzzle 177, (24/36) Diff: 4/6981
- Step-by-step instructions for solving Puzzle 178, (24/36) Diff: 4/5883
- Step-by-step instructions for solving Puzzle 179, (24/36) Diff: 4/5874
- Step-by-step instructions for solving Puzzle 180, (24/36) Diff: 4/5775
- Step-by-step instructions for solving Puzzle 181, (25/36) Diff: 4/9681
- Step-by-step instructions for solving Puzzle 182, (25/36) Diff: 4/7882
- Step-by-step instructions for solving Puzzle 183, (25/36) Diff: 4/7693
- Step-by-step instructions for solving Puzzle 184, (25/36) Diff: 4/5992
- Step-by-step instructions for solving Puzzle 185, (26/36) Diff: 4/9773
- Step-by-step instructions for solving Puzzle 186, (26/36) Diff: 4/9584
- Step-by-step instructions for solving Puzzle 187, (26/36) Diff: 4/6793
- Step-by-step instructions for solving Puzzle 188, (27/36) Diff: 4/8792
- Step-by-step instructions for solving Puzzle 189, (27/36) Diff: 4/5892
- Step-by-step instructions for solving Puzzle 190, (28/36) Diff: 4/5794