Touch-move rule move or capture the first of the pieces that they touched. If it cannot be determined whether he touched his own piece or the opponent's piece first, it is assumed that he touched his own piece first. If a player touches more than one piece, he must move or capture the first piece that can be legally moved or captured. An exception to that is an attempted illegal castling; in that case the king must be moved if possible, but otherwise there is no requirement to move the rook. When castling, the king must be the first piece touched. If
Touch-move rule The Yugoslav grandmaster Milan Matulović was nicknamed "J’adoubovic" after such an incident . The touch-move rule has existed for centuries. In the Middle Ages strict rules were considered necessary because chess was played for stakes. Luis Ramirez de Lucena gave the rule in his 1497 book "Arte de Axdres" . Benjamin Franklin referred to it in his 1786 essay "The morals of chess" . At one time the rule also required the player who played an illegal move to move his king. In the first half of the nineteenth century, Rule XIII of the London Chess Club provided: If a