GENE GENIE

First game-playing DNA computer revealed

The first game-playing DNA computer has been revealed - an enzyme-powered tic-tac-toe machine that cannot be beaten.
The human player makes his or her moves by dropping DNA into 3 by 3 square of wells that make up the board. The device then uses a complex mixture of DNA enzymes to determine where it should place its nought or cross, and signals its move with a green glow.