<h3><strong>? Great gift for family, friends or work colleagues</strong></h3><h3><em><strong>This Logic Puzzles book is packed with the following features:</strong></em></h3><h3>? <strong>1000</strong> Battleships 12x12 Puzzles from Easy to Hard (333 Easy - 334 Medium - 333 Hard).</h3><h3>? Each puzzle is guaranteed to have only one solution.</h3><h3>? Includes <strong>free bonus</strong> puzzles you can download book (Logic Puzzles & Brain Games for Adults) </h3><h3>? Answers to every puzzle are provided at the back of the book.</h3><h3>? Six puzzles per page (8.5 x 11 inches).</h3><p>Playing <strong>Battleships</strong> is not just a fun way to pass the time, due to its logical elements it has been found as a proven method of exercising and stimulating portions of your brain, training it even if you will and just like training any other muscle regularly you can expect to see an improvement in cognitive functions. Some studies go a