On 23 March 2021 at Margalef in Spain Alex Megos repeated Mejorando Imagen, a route freed in 2013 by Ramón Julián Puigblanque for which the German climber now proposes 9b...
Switzerland's Claude Remy provides a chronological analysis of the evolution free climbing (bouldering and difficulty). An article which clearly is not and cannot be definitive, but is merely a stimulus...