Variations on Challenging Education Sudoku Logic Puzzles (Vol 1)
Chapter 4: Fifteen Challenging HyperEducation Puzzles (numbers 16-30)
- Step-by-step instructions for solving Puzzle 16, (56/81) Diff: 18/61.BA21.22A2.5356.4454
- Step-by-step instructions for solving Puzzle 17, (55/81) Diff: 19/354.4311.2231.3311.5643
- Step-by-step instructions for solving Puzzle 18, (55/81) Diff: 20/531A.A1A3.2322.1246.5444
- Step-by-step instructions for solving Puzzle 19, (57/81) Diff: 15/345.5112.1B34.5678
- Step-by-step instructions for solving Puzzle 20, (58/81) Diff: 19/631.1AA1.1112.2257.6665
- Step-by-step instructions for solving Puzzle 21, (56/81) Diff: 20/6323.2112.1213.3355.3442
- Step-by-step instructions for solving Puzzle 22, (57/81) Diff: 17/3.A21A.1A24.3576.4385
- Step-by-step instructions for solving Puzzle 23, (58/81) Diff: 18/35.412A.1223.3243.2992
- Step-by-step instructions for solving Puzzle 24, (57/81) Diff: 20/2112.1132.2AA2.1357.4495
- Step-by-step instructions for solving Puzzle 25, (56/81) Diff: 18/54.4531.11A2.2443.5461
- Step-by-step instructions for solving Puzzle 26, (56/81) Diff: 19/421.1112.2111.2535.6873
- Step-by-step instructions for solving Puzzle 27, (57/81) Diff: 20/5311.111A.1223.9213.6761
- Step-by-step instructions for solving Puzzle 28, (56/81) Diff: 17/4.7435.1112.1233.5671
- Step-by-step instructions for solving Puzzle 29, (57/81) Diff: 18/52.2241.2223.6433.2563
- Step-by-step instructions for solving Puzzle 30, (57/81) Diff: 19/621.3221.1243.5332.2861