Test your powers of deduction against more than 200 devilishly difficult Killer Sudoku puzzles.
Famous puzzle-setter Gareth Moore has put together a supreme test of logic. These brand-new puzzles will provide hours of entertainment for anyone who enjoys a difficult mental challenge.
Test your powers of deduction against more than 200 devilishly difficult Killer Sudoku puzzles.
Famous puzzle-setter Gareth Moore has put together a supreme test of logic. These brand-new puzzles will provide hours of entertainment for anyone who enjoys a difficult mental challenge.