Tournament Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 54: Two Tournament (DiffLev 29) Unpredicably Puzzles (numbers 187-188) 
 
-  Step-by-step instructions for solving  Puzzle 187, (90/144)   Diff: 29/7.2342.221B.4112.2334.6433.2535.4532
 -  Step-by-step instructions for solving  Puzzle 188, (92/144)   Diff: 29/6.311A.2225.2114.1A11.2233.4958.5673