This is highlighted by another stunt filmed for the new series, where Derren invites a group of nine world-class chess professionals, comprised of Grandmasters and International Masters to a studio, decorated as a massive chess board. Derren then plays them all simultaneously, with the objective of beating or drawing with the majority of them - which he achieves. Derren can play chess, but by his own admission, he's not much good at it. Yet there he is, beating nine top-notch players. But there is an explanation and Derren reveals to camera how he did it'.
Source