Exclusieve Aanbieding Sudoku Patterns / 1st Edition

No, not another set of sudoku puzzles, not even exotic ones. This time a book about patterns in the finished sudoku and its many aspects: symmetry, trios, diagonals, shiftings, locations, tournaments, magic, even–odd and a lot more fanciful things. You can marvel at the many beautiful sudokus and be challenged to do better. Become a sudoku pattern player!