Murder on the Chessboard — Tony Nash

Detective Chief Inspector Tony Dyce and his ex-SAS friends are out of their comfort zone, and their lives in great danger, when a gang of vicious crooks come after the other half of an antique chess set, given to the soldiers by a German minister, as a reward for saving his son. The complete chess set holds the clues to the whereabouts of a cache of Nazi gold, and the ungodly, whose leader seems to have just too much information, will stop at nothing to obtain the pieces, including worldwide murder, torture and rape.