Difficult Sudoku Logic Puzzles (Vol 1)
Chapter 4: Thirty Difficult (DiffLev 10) Sudoku Puzzles (numbers 31-60)
- Step-by-step instructions for solving Puzzle 31, (48/81) Diff: 10/95.1223.3683
- Step-by-step instructions for solving Puzzle 32, (49/81) Diff: 10/62.4364.7854
- Step-by-step instructions for solving Puzzle 33, (49/81) Diff: 10/52.2356.9764
- Step-by-step instructions for solving Puzzle 34, (50/81) Diff: 10/93.1223.4897
- Step-by-step instructions for solving Puzzle 35, (51/81) Diff: 10/94.2224.5962
- Step-by-step instructions for solving Puzzle 36, (52/81) Diff: 10/94.2325.8784
- Step-by-step instructions for solving Puzzle 37, (52/81) Diff: 10/76.4466.8551
- Step-by-step instructions for solving Puzzle 38, (52/81) Diff: 10/75.5795.6242
- Step-by-step instructions for solving Puzzle 39, (52/81) Diff: 10/53.5656.5674
- Step-by-step instructions for solving Puzzle 40, (53/81) Diff: 10/93.4254.8855
- Step-by-step instructions for solving Puzzle 41, (53/81) Diff: 10/73.4456.8942
- Step-by-step instructions for solving Puzzle 42, (53/81) Diff: 10/66.5333.5894
- Step-by-step instructions for solving Puzzle 43, (53/81) Diff: 10/56.5356.9741
- Step-by-step instructions for solving Puzzle 44, (54/81) Diff: 10/98.7872.2244
- Step-by-step instructions for solving Puzzle 45, (54/81) Diff: 10/96.5478.5541
- Step-by-step instructions for solving Puzzle 46, (54/81) Diff: 10/86.6655.9522
- Step-by-step instructions for solving Puzzle 47, (54/81) Diff: 10/85.4437.8753
- Step-by-step instructions for solving Puzzle 48, (54/81) Diff: 10/85.2235.5896
- Step-by-step instructions for solving Puzzle 49, (54/81) Diff: 10/75.7456.6464
- Step-by-step instructions for solving Puzzle 50, (54/81) Diff: 10/65.5657.6761
- Step-by-step instructions for solving Puzzle 51, (54/81) Diff: 10/55.3244.7796
- Step-by-step instructions for solving Puzzle 52, (54/81) Diff: 10/53.4697.4474
- Step-by-step instructions for solving Puzzle 53, (55/81) Diff: 10/92.4333.6698
- Step-by-step instructions for solving Puzzle 54, (55/81) Diff: 10/89.8443.4564
- Step-by-step instructions for solving Puzzle 55, (55/81) Diff: 10/84.4667.7553
- Step-by-step instructions for solving Puzzle 56, (55/81) Diff: 10/56.5368.7834
- Step-by-step instructions for solving Puzzle 57, (56/81) Diff: 10/99.8423.7644
- Step-by-step instructions for solving Puzzle 58, (56/81) Diff: 10/67.7855.5652
- Step-by-step instructions for solving Puzzle 59, (56/81) Diff: 10/63.3459.6568
- Step-by-step instructions for solving Puzzle 60, (56/81) Diff: 10/54.2457.5798