- Teaching Logic using Group Puzzles
- Solving Group Logic Puzzles
- Puzzle Difficultly Levels Explained
- Detailed instructions for working a type 'Sudoku-5' group puzzle
- Detailed instructions for working a type 'Sudoku-5-Spot' group puzzle
- Detailed instructions for working a type 'Sudoku-5B' group puzzle
- Detailed instructions for working a type 'Sudoku-5C' group puzzle
- Twelve Medium (DiffLev 5) Sudoku-5 Puzzles (numbers 1-12)
- Twelve Medium (DiffLev 6) Sudoku-5 Puzzles (numbers 13-24)
- Twelve Medium (DiffLev 7) Sudoku-5 Puzzles (numbers 25-36)
- Twelve Medium (DiffLev 8) Sudoku-5 Puzzles (numbers 37-48)
- Twelve Medium (DiffLev 5) Sudoku-5-Spot Puzzles (numbers 49-60)
- Twelve Medium (DiffLev 6) Sudoku-5-Spot Puzzles (numbers 61-72)
- Twelve Medium (DiffLev 7) Sudoku-5-Spot Puzzles (numbers 73-84)
- Twelve Medium (DiffLev 8) Sudoku-5-Spot Puzzles (numbers 85-96)
- Twelve Medium (DiffLev 5) Sudoku-5B Puzzles (numbers 97-108)
- Twelve Medium (DiffLev 6) Sudoku-5B Puzzles (numbers 109-120)
- Twelve Medium (DiffLev 7) Sudoku-5B Puzzles (numbers 121-132)
- Twelve Medium (DiffLev 8) Sudoku-5B Puzzles (numbers 133-144)
- Twelve Medium (DiffLev 5) Sudoku-5C Puzzles (numbers 145-156)
- Twelve Medium (DiffLev 6) Sudoku-5C Puzzles (numbers 157-168)
- Twelve Medium (DiffLev 7) Sudoku-5C Puzzles (numbers 169-180)
- Ten Medium (DiffLev 8) Sudoku-5C Puzzles (numbers 181-190)