<p/><br></br><p><b> About the Book </b></p></br></br>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.<p/><br></br><p><b> Book Synopsis </b></p></br></br>These diabolically difficult Ultimate Killer Su Doku puzzles will really put your brainpower to the test as you warm up with the 150 Deadly Killer puzzles before steeling yourself to take on the 50 Extra Deadly Su Dokus. The puzzles use the same 9x9 grid as a regular Su Doku, but have an extra mathematical element that multiplies the challenge. The aim is not only to complete every row, column and cube so that it contains the digits 1 to 9, but also to make sure that the outlined sections, called cages, add up to the number given in each cage.<p/><br></br><p><b> About the Author </b></p></br></br><b>The Times Mind Games</b> brings together the very best puzzles from the pages of <i>The Times</i>.
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