Favorite Fox Sudoku Free download

EditByBrothersoft: Favorite Fox Sudoku is an easy to use yet surprisingly powerful sudoku program. Hours of fun for beginners and experts alike. Create and solve regular, Monster, killer and Jigsaw sudokus - or any combination thereof.
Supports most well known sudoku techniques
High quality fast puzzle generator that only uses logical techniques. Guessing, Nishio, forcing Chains or other trial-and-error techniques are not needed.
Singles
Hidden singles
Naked pairs
Naked triples (and subsets)
Box claims row or column (or 'Pointing pairs' or 'Locked Candidates 1')
Row or column claims box (or 'Box/line reduction' or 'Locked Candidates 2')
X-wing
Swordfish
Jellyfish
Coloring
Y-Wing
Hidden pairs
Hidden triples (and subsets)
Naked quads (and subsets)
Hidden quads (and subsets)
Rule of 45 (splits)
Rule of 45 (innies and outies)
Rule of 45 (plus minus variant)
Sum elimination (impossible candidates)
Sum elimination (mandatory candidates) (including killer variant of Block and Column / Row Interactions)

Requirements: .NET Framework 2.0 or higher