Tough killer sudoku volume 9 each booklet contains a collection of eight different puzzles 1 per page with a page of answers in the back the booklets are ordered by ascending difficulty the puzzles in book 100 are much harder than the puzzles in book 1. Super tough volume 20 super tough puzzles may require a little guesswork or even more advanced strategies click here to read about advanced sudoku strategy to complete the puzzle i provide an extra scratch area on these puzzles for working out the solution. Tough killer sudoku volume 4 by krazydad media publishing ebook epub kindle pdf view id a4091954d jul 12 2020 by jeffrey archer these puzzles have more going on and can be extremely satisfying to solve krazydad killer sudoku volume 1 360 intermediate to killer sudoku is a very popular variant of classic sudoku that adds some. Tough sudoku puzzles volume 1 each of my books contains a collection of eight sudoku puzzles 1 per page with a page of hints and a page of answers in the back these booklets are in pdf format and need the adobe acrobat reader to view or print. Tough sudoku puzzles 4 per page volume 7 each of my books contains a collection of eight sudoku puzzles 4 per page with a page of hints and a page of answers in the back these booklets are in pdf format and need the adobe acrobat reader to view or print