Books in the The Times Ultimate Killer series

Challenge your brain at home with these enjoyable puzzles. Specially compiled to provide the most deadly Su Doku challenge, this is the only volume for Su Doku enthusiasts who need a puzzle that really tests their mettle.

Challenge yourself at home with word and number puzzles Specially compiled to provide the most deadly Su Doku challenge, this is the only volume for Su Doku enthusiasts who need a puzzle that really tests their mettle.

Challenge yourself at home with word and number puzzles Specially compiled to provide the most devilishly difficult challenge, Ultimate killer Su Doku 4 is the only volume for Su Doku enthusiasts who need a puzzle that really tests their mettle.

Challenge yourself at home with word and number puzzles Specially compiled to provide the most devilishly difficult challenge, Ultimate killer Su Doku 3 is the only volume for Su Doku enthusiasts who need a puzzle that really tests their mettle.