Variations on Advanced Sudoku Logic Puzzles (Vol 1)

Chapter 17: Four Difficult HyperSudoku-12 Puzzles (numbers 49-52)

• Step-by-step instructions for solving Puzzle 49, (94/144)   Diff: 10/99.8999.9755
• Step-by-step instructions for solving Puzzle 50, (90/144)   Diff: 11/964.5546.9994
• Step-by-step instructions for solving Puzzle 51, (93/144)   Diff: 11/976.6667.9993
• Step-by-step instructions for solving Puzzle 52, (96/144)   Diff: 14/98.2345.8557.9991