- Teaching Logic using Group Puzzles
- Solving Group Logic Puzzles
- Puzzle Difficultly Levels Explained
- Detailed instructions for working a type 'Sudoku-7' group puzzle
- Detailed instructions for working a type 'Sudoku-7B' group puzzle
- Detailed instructions for working a type 'Sudoku-7B-2V' group puzzle
- Detailed instructions for working a type 'Sudoku-7B-X' group puzzle
- Detailed instructions for working a type 'Sudoku-7C' group puzzle
- Detailed instructions for working a type 'Sudoku-7C-2V' group puzzle
- Detailed instructions for working a type 'Sudoku-7D' group puzzle
- Fourteen Difficult (DiffLev 9-10) Sudoku-7 Puzzles (numbers 1-14)
- Fourteen Difficult (DiffLev 11-12) Sudoku-7 Puzzles (numbers 15-28)
- Fourteen Difficult (DiffLev 9-10) Sudoku-7B Puzzles (numbers 29-42)
- Fourteen Difficult (DiffLev 11-12) Sudoku-7B Puzzles (numbers 43-56)
- Fourteen Difficult (DiffLev 9-10) Sudoku-7B-2V Puzzles (numbers 57-70)
- Twelve Difficult (DiffLev 11-12) Sudoku-7B-2V Puzzles (numbers 71-82)
- Fourteen Difficult (DiffLev 9-10) Sudoku-7B-X Puzzles (numbers 83-96)
- Twelve Difficult (DiffLev 11-12) Sudoku-7B-X Puzzles (numbers 97-108)
- Fourteen Difficult (DiffLev 9-10) Sudoku-7C Puzzles (numbers 109-122)
- Fourteen Difficult (DiffLev 11-12) Sudoku-7C Puzzles (numbers 123-136)
- Fourteen Difficult (DiffLev 9-10) Sudoku-7C-2V Puzzles (numbers 137-150)
- Twelve Difficult (DiffLev 11-12) Sudoku-7C-2V Puzzles (numbers 151-162)
- Fourteen Difficult (DiffLev 9-10) Sudoku-7D Puzzles (numbers 163-176)
- Fourteen Difficult (DiffLev 11-12) Sudoku-7D Puzzles (numbers 177-190)