Brainbenders sudoku : play the mind-stretching numbers game 
Brain Benders 
 - London  Arcturus Publishing  2006 
 - 127 p 
<br/><br/><label>ISBN: </label>9781841937816 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Puzzles
<br/><br/><label>Dewey Class. No.: </label>793.74 BRA