Variations on Intermediate Sudoku Logic Puzzles (Vol 1) 
 Chapter 22: Eight Challenging Sudoku-7B-X Puzzles (numbers 113-120) 
 
-  Step-by-step instructions for solving  Puzzle 113, (38/49)   Diff: 13/4.21A1.3213.5672
 -  Step-by-step instructions for solving  Puzzle 114, (38/49)   Diff: 13/3.2122.1234.7452
 -  Step-by-step instructions for solving  Puzzle 115, (39/49)   Diff: 14/32.B224.2121.5661
 -  Step-by-step instructions for solving  Puzzle 116, (40/49)   Diff: 14/63.3221.2122.3364
 -  Step-by-step instructions for solving  Puzzle 117, (40/49)   Diff: 14/32.1B21.1144.6742
 -  Step-by-step instructions for solving  Puzzle 118, (40/49)   Diff: 14/31.211A.11B3.6864
 -  Step-by-step instructions for solving  Puzzle 119, (40/49)   Diff: 14/21.A122.2A12.4794
 -  Step-by-step instructions for solving  Puzzle 120, (40/49)   Diff: 14/11.2223.1113.4793