In this game, your goal is to close all books on the square board by a sequence of mouse clicks. When you click on a closed book, that book is opened; when you click on an open book, that book is closed. In addition, each click changes the current state of the entire row and column that contain the book you've clicked. If you'd like a bigger or smaller board, you can change it to any size from 10x10 through 15x15. Enjoy the game!