Only one other person has reported flashing a V13 problem: Britain's James Pearson, who recently flashed his third problem given 8B (V13), Schule des Lebens in Switzerland.
Later, Paul Robinson has made the second ascent of Terremer (V15/V16), the hardest boulder problem at Hueco Tanks. Switzerland's Fred Nicole established Terremer at the beginning of 2006. The problem links Diaphanous Sea (V12) and Terre de Sienne (V14), two other Nicole problems on Hueco's North Mountain.
Read the full report by Dougald MacDonald at Climbing.com.