<DIV><DIV>Here it is: the next big puzzle sensation, destined to join sudoku and kakuro as a bestselling blockbuster. Yubotu is the Japanese word for &#8220;U-Boat&#8221; or submarine, and this collection plays a variation on the traditional favorite known as Battleships. It&#8217;s co-created by Peter Gordon and Mike Shenk, the team that first brought this type of puzzle to America. The object is to locate 10 ships in a fleet&#8212;four subs, three destroyers, two cruisers, and one battleship&#8212;all hidden in an &#8220;ocean&#8221; represented by the spaces in a grid. An introduction explains all the basics in detail, taking solvers through a sample puzzle, with the puzzles getting more difficult as you go along until they&#8217;re absolutely brain-busting!</DIV>