How Futoshiki Puzzles Work


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  • Addley, Esther. "If you were seduced by sudoku, prepare for futoshiki fever." The Guardian. Sept. 30, 2006. (Aug. 30, 2011) http://www.guardian.co.uk/world/2006/sep/30/japan.estheraddley
  • Free Online Library. "Number Based Puzzles Are Exponentially Growing." 2008. (Aug. 30, 2011) http://www.thefreelibrary.com/Number+Based+Puzzles+Are+Exponentially+Growing-a01073898924