Medium Sudoku Eight Logic Puzzles (Vol 1) 
 Chapter 7: Sixteen Medium (DiffLev 5-6) HyperSudoku-8 Puzzles (numbers 63-78) 
 
-  Step-by-step instructions for solving  Puzzle 63, (33/64)   Diff: 5/9.9832
 -  Step-by-step instructions for solving  Puzzle 64, (33/64)   Diff: 5/9.7641
 -  Step-by-step instructions for solving  Puzzle 65, (39/64)   Diff: 5/9.8682
 -  Step-by-step instructions for solving  Puzzle 66, (40/64)   Diff: 5/9.8994
 -  Step-by-step instructions for solving  Puzzle 67, (42/64)   Diff: 5/8.9994
 -  Step-by-step instructions for solving  Puzzle 68, (43/64)   Diff: 5/9.7795
 -  Step-by-step instructions for solving  Puzzle 69, (27/64)   Diff: 6/93.3451
 -  Step-by-step instructions for solving  Puzzle 70, (36/64)   Diff: 6/97.5582
 -  Step-by-step instructions for solving  Puzzle 71, (37/64)   Diff: 6/87.8734
 -  Step-by-step instructions for solving  Puzzle 72, (39/64)   Diff: 6/99.8542
 -  Step-by-step instructions for solving  Puzzle 73, (39/64)   Diff: 6/73.2599
 -  Step-by-step instructions for solving  Puzzle 74, (41/64)   Diff: 6/99.5742
 -  Step-by-step instructions for solving  Puzzle 75, (41/64)   Diff: 6/98.9345
 -  Step-by-step instructions for solving  Puzzle 76, (41/64)   Diff: 6/98.5586
 -  Step-by-step instructions for solving  Puzzle 77, (42/64)   Diff: 6/94.7993
 -  Step-by-step instructions for solving  Puzzle 78, (44/64)   Diff: 6/98.8855