Medium Sudoku Seven Logic Puzzles (Vol 1) 
 Chapter 12: Fourteen Medium (DiffLev 7-8) Sudoku-7C Puzzles (numbers 123-136) 
 
-  Step-by-step instructions for solving  Puzzle 123, (34/49)   Diff: 7/564.5581
 -  Step-by-step instructions for solving  Puzzle 124, (38/49)   Diff: 7/555.6674
 -  Step-by-step instructions for solving  Puzzle 125, (39/49)   Diff: 7/366.4694
 -  Step-by-step instructions for solving  Puzzle 126, (34/49)   Diff: 8/7443.6541
 -  Step-by-step instructions for solving  Puzzle 127, (34/49)   Diff: 8/1355.3872
 -  Step-by-step instructions for solving  Puzzle 128, (35/49)   Diff: 8/7223.6681
 -  Step-by-step instructions for solving  Puzzle 129, (35/49)   Diff: 8/6545.3552
 -  Step-by-step instructions for solving  Puzzle 130, (35/49)   Diff: 8/5353.4753
 -  Step-by-step instructions for solving  Puzzle 131, (36/49)   Diff: 8/6346.6632
 -  Step-by-step instructions for solving  Puzzle 132, (36/49)   Diff: 8/4444.6662
 -  Step-by-step instructions for solving  Puzzle 133, (37/49)   Diff: 8/4245.7456
 -  Step-by-step instructions for solving  Puzzle 134, (38/49)   Diff: 8/6455.4563
 -  Step-by-step instructions for solving  Puzzle 135, (38/49)   Diff: 8/4466.4464
 -  Step-by-step instructions for solving  Puzzle 136, (38/49)   Diff: 8/3434.4677