15 Numbers is an educational math puzzle game program designed for use by individuals who are blind or have low vision. This game is completely self-voicing, so a separate screen reader program is not necessary. The player has 15 numbers, 1 through 15, on two game boards called the task board and the work board. The task board shows the 15 numbers arranged in a specific pattern that the player must match using the work board. The work board has the same 15 numbers mixed up with one empty slot, and the player must use the one empty slot to shuffle the numbers around to match the exact numeric pattern on the task board. COMPATIBILITY: For use on IBM and compatible computers. SYSTEM REQUIREMENTS: Windows 95 or higher operating system; Microsoft™ DirectX.