The Sudoku Challenge: 200 Puzzles to Strain Your Brain!
by
Nikoli
Paperback
details (
USA
).
ISBN: 978-1-4027-3358-1
ISBN-10: 1-4027-3358-5
Sterling
· 2006
See also (possibly by other authors):
2005
Paperback
The Sudoku Challenge: 200 Puzzles to Strain Your Brain!