Medium Sudoku Five Logic Puzzles (Vol 1) 
 Chapter 12: Twelve Medium (DiffLev 6) Sudoku-5B Puzzles (numbers 109-120) 
 
-  Step-by-step instructions for solving  Puzzle 109, (17/25)   Diff: 6/42.2351
 -  Step-by-step instructions for solving  Puzzle 110, (18/25)   Diff: 6/44.1234
 -  Step-by-step instructions for solving  Puzzle 111, (19/25)   Diff: 6/23.3452
 -  Step-by-step instructions for solving  Puzzle 112, (20/25)   Diff: 6/35.5232
 -  Step-by-step instructions for solving  Puzzle 113, (20/25)   Diff: 6/32.4344
 -  Step-by-step instructions for solving  Puzzle 114, (20/25)   Diff: 6/32.3462
 -  Step-by-step instructions for solving  Puzzle 115, (20/25)   Diff: 6/25.5422
 -  Step-by-step instructions for solving  Puzzle 116, (20/25)   Diff: 6/21.4454
 -  Step-by-step instructions for solving  Puzzle 117, (20/25)   Diff: 6/11.3366
 -  Step-by-step instructions for solving  Puzzle 118, (21/25)   Diff: 6/64.2342
 -  Step-by-step instructions for solving  Puzzle 119, (21/25)   Diff: 6/23.3544
 -  Step-by-step instructions for solving  Puzzle 120, (21/25)   Diff: 6/12.3465