But Im Dong-Hyun simply aims at the ill-defined yellow blob, shimmering and fuzzy at 70m, and somehow his poise, strength and technique combine to put the arrow right on target.

BBC: Korea's blind' archer Im Dong-Hyun aims for 2012 gold

If a third end is necessary, the closest arrow to the centre of the target will win the contest.

BBC: Sport - Archery - Guide to Archery