16x16 super sudoku: hard 16x16 full-page number sudoku, vol. 1 (Createspace Independent Publishing Platform)

Each edition of the Hard 16x16 Number Sudoku series contains 60 computer-generated Sudoku with 16x16 fields. The 16x16 Sudoku puzzles are asymmetric Sudoku with 100 predefined numbers from 1 to 16; the level of difficulty is