Medium Sudoku Eight Logic Puzzles (Vol 1) 
 Chapter 5: Sixteen Medium (DiffLev 5-6) Sudoku-8-X Puzzles (numbers 31-46) 
 
-  Step-by-step instructions for solving  Puzzle 31, (37/64)   Diff: 5/9.6582
 -  Step-by-step instructions for solving  Puzzle 32, (40/64)   Diff: 5/9.9962
 -  Step-by-step instructions for solving  Puzzle 33, (41/64)   Diff: 5/9.9954
 -  Step-by-step instructions for solving  Puzzle 34, (41/64)   Diff: 5/9.5799
 -  Step-by-step instructions for solving  Puzzle 35, (41/64)   Diff: 5/8.9963
 -  Step-by-step instructions for solving  Puzzle 36, (42/64)   Diff: 5/9.9994
 -  Step-by-step instructions for solving  Puzzle 37, (43/64)   Diff: 5/9.9981
 -  Step-by-step instructions for solving  Puzzle 38, (44/64)   Diff: 5/9.9994
 -  Step-by-step instructions for solving  Puzzle 39, (40/64)   Diff: 6/96.6584
 -  Step-by-step instructions for solving  Puzzle 40, (42/64)   Diff: 6/67.9863
 -  Step-by-step instructions for solving  Puzzle 41, (42/64)   Diff: 6/53.5997
 -  Step-by-step instructions for solving  Puzzle 42, (43/64)   Diff: 6/96.9952
 -  Step-by-step instructions for solving  Puzzle 43, (43/64)   Diff: 6/77.9992
 -  Step-by-step instructions for solving  Puzzle 44, (44/64)   Diff: 6/97.6975
 -  Step-by-step instructions for solving  Puzzle 45, (44/64)   Diff: 6/78.7679
 -  Step-by-step instructions for solving  Puzzle 46, (44/64)   Diff: 6/59.8787