Challenging Sudoku Twelve Logic Puzzles (Vol 1)
Chapter 46: Two Challenging (DiffLev 18-19) Stickhandler Puzzles (numbers 171-172)
- Step-by-step instructions for solving Puzzle 171, (90/144) Diff: 18/95.4311.5566.2377.9473
- Step-by-step instructions for solving Puzzle 172, (98/144) Diff: 19/834.3552.1231.2259.9994