The first player takes any block of his choice & places it over any of the five locating octagons in the center of the tray. The letter facing him will be different from that facing his opponent. His opponent now plays a block of his choice, choosing one which has a letter that will help him. He may place this wherever he chooses. Play continues in this way until all blocks are placed in a square stack, scoring takes place & the highest scorer is the winner ! Downspin with letters - great strategy game !