Variations on Intermediate Sudoku Logic Puzzles (Vol 1) 
 Chapter 66: Eight Difficult SuperSudoku-8 Puzzles (numbers 389-396) 
 
-  Step-by-step instructions for solving  Puzzle 389, (44/64)   Diff: 9/9.5746.4441
 -  Step-by-step instructions for solving  Puzzle 390, (47/64)   Diff: 9/6.5676.5642
 -  Step-by-step instructions for solving  Puzzle 391, (43/64)   Diff: 10/51.1334.4499
 -  Step-by-step instructions for solving  Puzzle 392, (43/64)   Diff: 11/944.5312.2542
 -  Step-by-step instructions for solving  Puzzle 393, (44/64)   Diff: 11/733.2233.4674
 -  Step-by-step instructions for solving  Puzzle 394, (46/64)   Diff: 11/665.4433.6441
 -  Step-by-step instructions for solving  Puzzle 395, (43/64)   Diff: 12/7521.3433.2364
 -  Step-by-step instructions for solving  Puzzle 396, (45/64)   Diff: 12/9222.1234.5644