Variations on Advanced Sudoku Logic Puzzles (Vol 1)
Chapter 22: Four Medium tpsmith Puzzles (numbers 69-72)
- Step-by-step instructions for solving Puzzle 69, (74/144) Diff: 6/99.9991
- Step-by-step instructions for solving Puzzle 70, (79/144) Diff: 6/99.9993
- Step-by-step instructions for solving Puzzle 71, (81/144) Diff: 6/99.9995
- Step-by-step instructions for solving Puzzle 72, (84/144) Diff: 7/989.9998