Medium Sudoku Five Logic Puzzles (Vol 1) 
 Chapter 14: Twelve Medium (DiffLev 8) Sudoku-5B Puzzles (numbers 133-144) 
 
-  Step-by-step instructions for solving  Puzzle 133, (18/25)   Diff: 8/2212.2351
 -  Step-by-step instructions for solving  Puzzle 134, (19/25)   Diff: 8/1221.2551
 -  Step-by-step instructions for solving  Puzzle 135, (20/25)   Diff: 8/2411.3441
 -  Step-by-step instructions for solving  Puzzle 136, (20/25)   Diff: 8/2223.3422
 -  Step-by-step instructions for solving  Puzzle 137, (20/25)   Diff: 8/2222.2343
 -  Step-by-step instructions for solving  Puzzle 138, (20/25)   Diff: 8/1212.3452
 -  Step-by-step instructions for solving  Puzzle 139, (20/25)   Diff: 8/1111.1276
 -  Step-by-step instructions for solving  Puzzle 140, (21/25)   Diff: 8/3311.2452
 -  Step-by-step instructions for solving  Puzzle 141, (21/25)   Diff: 8/3112.3434
 -  Step-by-step instructions for solving  Puzzle 142, (21/25)   Diff: 8/2133.3441
 -  Step-by-step instructions for solving  Puzzle 143, (21/25)   Diff: 8/1232.2452
 -  Step-by-step instructions for solving  Puzzle 144, (21/25)   Diff: 8/1123.3551