Talk:Fifteen
Very nice puzzle -- I've never seen it before. I think this would work well as a follow up to a discussion of magic squares. Oscarlevin 14:11, 18 November 2010 (EST)
Very nice puzzle -- I've never seen it before. I think this would work well as a follow up to a discussion of magic squares. Oscarlevin 14:11, 18 November 2010 (EST)