Some black squares and some numbers have been inserted. The rest is up to you. Hint: The black squares are symmetrical. Instructions: To turn a square into a black box, click on the square and press '.' (the period key). To turn it back to white, press '.' again. To put a letter in a square, click on the square and press the character key. To erase a letter press the space bar. To replace a letter type the new letter. To assign a number to a square, click on the square and type in the number. To erase a number click on the square and press the space bar. If you can't see the games below try our text version of this game.