Challenging Sudoku Logic Puzzles (Vol 1)
Chapter 5: Thirty Challenging (DiffLev 17) Sudoku Puzzles (numbers 61-90)
- Step-by-step instructions for solving Puzzle 61, (50/81) Diff: 17/6.3112.4122.31A2.4854
- Step-by-step instructions for solving Puzzle 62, (52/81) Diff: 17/3.2233.1111.B365.2584
- Step-by-step instructions for solving Puzzle 63, (53/81) Diff: 17/7.3422.1131.1422.3872
- Step-by-step instructions for solving Puzzle 64, (53/81) Diff: 17/6.1232.2321.1259.5441
- Step-by-step instructions for solving Puzzle 65, (53/81) Diff: 17/2.AB22.1211.2334.8946
- Step-by-step instructions for solving Puzzle 66, (54/81) Diff: 17/7.3331.1123.5322.2673
- Step-by-step instructions for solving Puzzle 67, (54/81) Diff: 17/3.1B21.A222.4463.4764
- Step-by-step instructions for solving Puzzle 68, (55/81) Diff: 17/7.4312.2133.4211.4944
- Step-by-step instructions for solving Puzzle 69, (55/81) Diff: 17/6.42B3.7232.1132.4553
- Step-by-step instructions for solving Puzzle 70, (55/81) Diff: 17/5.631A.A111.2124.4895
- Step-by-step instructions for solving Puzzle 71, (55/81) Diff: 17/5.311A.2332.3573.2356
- Step-by-step instructions for solving Puzzle 72, (55/81) Diff: 17/4.1C21.1A13.4233.6892
- Step-by-step instructions for solving Puzzle 73, (55/81) Diff: 17/4.1123.1C23.2B44.9651
- Step-by-step instructions for solving Puzzle 74, (55/81) Diff: 17/3.5442.1AA2.2124.3595
- Step-by-step instructions for solving Puzzle 75, (56/81) Diff: 17/6.5221.11B1.2263.5845
- Step-by-step instructions for solving Puzzle 76, (56/81) Diff: 17/6.2B12.33BA.2366.6542
- Step-by-step instructions for solving Puzzle 77, (56/81) Diff: 17/6.1133.4432.5233.4534
- Step-by-step instructions for solving Puzzle 78, (56/81) Diff: 17/5.5331.BC73.2423.4432
- Step-by-step instructions for solving Puzzle 79, (56/81) Diff: 17/5.5264.3111.1145.7451
- Step-by-step instructions for solving Puzzle 80, (56/81) Diff: 17/5.2222.5543.2333.3642
- Step-by-step instructions for solving Puzzle 81, (57/81) Diff: 17/7.6231.21B3.4254.4344
- Step-by-step instructions for solving Puzzle 82, (57/81) Diff: 17/7.622B.24A1.2133.6762
- Step-by-step instructions for solving Puzzle 83, (57/81) Diff: 17/7.41B2.2111.4724.5662
- Step-by-step instructions for solving Puzzle 84, (57/81) Diff: 17/5.6424.3221.A122.3792
- Step-by-step instructions for solving Puzzle 85, (57/81) Diff: 17/5.2262.A322.1234.3874
- Step-by-step instructions for solving Puzzle 86, (57/81) Diff: 17/4.21A1.2374.3345.4652
- Step-by-step instructions for solving Puzzle 87, (57/81) Diff: 17/3.3221.A113.6657.5542
- Step-by-step instructions for solving Puzzle 88, (57/81) Diff: 17/2.4223.3323.2223.7952
- Step-by-step instructions for solving Puzzle 89, (58/81) Diff: 17/6.4422.2322.3542.4841
- Step-by-step instructions for solving Puzzle 90, (58/81) Diff: 17/6.4223.3324.2224.6454