Tournament Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 41: Two Tournament (DiffLev 23-24) Persuadingly Puzzles (numbers 161-162) 
 
-  Step-by-step instructions for solving  Puzzle 161, (102/144)   Diff: 23/783.2424.3221.B253.6464.9975
 -  Step-by-step instructions for solving  Puzzle 162, (98/144)   Diff: 24/9354.2422.2233.3365.4455.7942