Tournament Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 37: Two Tournament (DiffLev 25-27) Outfieldsman Puzzles (numbers 153-154) 
 
-  Step-by-step instructions for solving  Puzzle 153, (98/144)   Diff: 25/6.4223.3311.3113.3241.1347.9898
 -  Step-by-step instructions for solving  Puzzle 154, (94/144)   Diff: 27/965.1125.411A.2111.2267.7534.3373