Researchers found a clear way to show that for some puzzle-like problems there is no shortcut and you must check every possibility, helping set ...

From suspended tables to underwater lounges, some 13,000 food and drink establishments in Dubai pull out all the stops to ...

Favorite Puzzle Baron's logic puzzles by Ryder, Stephen P Publication date 2010 Topics Logic puzzles Publisher New York, N.Y. : Alpha Books Collection internetarchivebooks; printdisabled Contributor ...