This calculator requires the use of Javascript enabled and capable browsers. This is a game of planning and thought. The computer is your opponent. The objective is to capture as many boxes as possible. You capture a box by being the one to fill in the last of the 4 lines to make the box sides. To draw a line for a side, click a point at one end of the line and then the point at the other. The line cannot span more than the area between two adjacent points. The running score is displayed at the bottom of the board grid. Enjoy.
