A blunder cost chess legend Garry Kasparov the third game in a series of Man Vs. Machine champiosnhip games with the supercomputer 'Deep Junior.' 'I had a complete blackout,' Kasparov said after the contest. 'Despite Deep Junior having a great team and grandmaster trainers, I had great positions.' [to try and win the game]After sacrificing a pawn, Kasparov was left nearly crippled as Deep Junior capitalized on the mistake and prevented any possibility of being checkmated.Seeing few options to win, Kasparov resigned the game.The six game series is tied at 1 and one half games each. Kasparov won the first...