He and the New York grandmaster John Fedorowicz, who captured second prize with 5 1/2-3 1/2, were the only undefeated players.

He was the only purely human player still undefeated.

Brian Fred was crowned champion as the only undefeated player at the event, in which close to 20 players participated.

He retired from the event following this victory making him the only undefeated player in the history of the world championships.

The undefeated players are seeded on stage 2 and the best eight will receive first round byes.

It's no wonder that he was the only undefeated player and won with a lead of 1 1/2 points over the star-studded field.

He did not make any: the 25-year-old Latvian grandmaster was the only undefeated player.

His solid positional play got him a 7 1/2-3 1/2 score and the distinction of being the only undefeated player in the field.

These two had to play each other; the loser would be eliminated from the Tourney, and the winner would meet the single undefeated player.

The match-ups are redrawn for the knockout stage, with the undefeated players being seeded.