Group Puzzles (Sudoku Generalized) Variations on Sudoku Logic Puzzles, Volume 1.
  1. Teaching Logic using Group Puzzles
  2. Solving Group Logic Puzzles
  3. Twelve Easy Sudoku Puzzles (numbers 1-12)
  4. Twenty-Four Medium Sudoku Puzzles (numbers 13-36)
  5. Twenty-Four Difficult Sudoku Puzzles (numbers 37-60)
  6. Twenty-Four Challenging Sudoku Puzzles (numbers 61-84)
  7. Twelve Tournament Sudoku Puzzles (numbers 85-96)
  8. Twelve Easy Sudoku-X Puzzles (numbers 97-108)
  9. Twelve Medium Sudoku-X Puzzles (numbers 109-120)
  10. Twelve Difficult Sudoku-X Puzzles (numbers 121-132)
  11. Twelve Challenging Sudoku-X Puzzles (numbers 133-144)
  12. Twelve Tournament Sudoku-X Puzzles (numbers 145-156)
  13. Twelve Easy HyperSudoku Puzzles (numbers 157-168)
  14. Twelve Medium HyperSudoku Puzzles (numbers 169-180)
  15. Twelve Difficult HyperSudoku Puzzles (numbers 181-192)
  16. Twelve Challenging HyperSudoku Puzzles (numbers 193-204)
  17. Twelve Tournament HyperSudoku Puzzles (numbers 205-216)
  18. Twelve Easy HyperSudoku-X Puzzles (numbers 217-228)
  19. Twelve Medium HyperSudoku-X Puzzles (numbers 229-240)
  20. Twelve Difficult HyperSudoku-X Puzzles (numbers 241-252)
  21. Twelve Challenging HyperSudoku-X Puzzles (numbers 253-264)
  22. Twelve Tournament HyperSudoku-X Puzzles (numbers 265-276)
  23. Twelve Easy Education Puzzles (numbers 277-288)
  24. Twelve Medium Education Puzzles (numbers 289-300)
  25. Twelve Difficult HyperEducation Puzzles (numbers 301-312)
  26. Twelve Challenging HyperEducation Puzzles (numbers 313-324)
  27. Twelve Tournament HyperEducation Puzzles (numbers 325-336)
  28. Twelve Easy 4THOFJULY Puzzles (numbers 337-348)
  29. Twelve Medium 4THOFJULY Puzzles (numbers 349-360)
  30. Twelve Difficult 4THOFJULY Puzzles (numbers 361-372)
  31. Twelve Tournament 4THOFJULY Puzzles (numbers 373-384)