Variations on Advanced Sudoku Logic Puzzles (Vol 1)

Chapter 24: Four Challenging tpsmith Puzzles (numbers 77-80)

• Step-by-step instructions for solving Puzzle 77, (86/144)   Diff: 15/997.3211.1449.8995
• Step-by-step instructions for solving Puzzle 78, (93/144)   Diff: 16/9965.42B3.7456.6593
• Step-by-step instructions for solving Puzzle 79, (93/144)   Diff: 20/7333.3332.4778.6433.6972
• Step-by-step instructions for solving Puzzle 80, (102/144)   Diff: 20/9624.7223.6244.4478.9954