Variations on Sudoku-by5 Logic Puzzles (Vol 1) 
 Chapter 30: Three Perplexing HyperSudoku-by5 Puzzles (numbers 82-84) 
 
-  Step-by-step instructions for solving  Puzzle 82, (277/369)   Diff: 56/9963.31C1.231A.1B22.4543.2441.1112.2588+
 -  Step-by-step instructions for solving  Puzzle 83, (272/369)   Diff: 57/9.5412.3336.2211.21B4.5435.3655.1A11.2486+
 -  Step-by-step instructions for solving  Puzzle 84, (278/369)   Diff: 58/98.3211.11A3.3552.2223.3798.5957.9969.9898+