An intentional stalemate occurred on the 124th move of the fifth game of the 1978 World Championship match between Viktor Korchnoi and Anatoly Karpov. The game had been a theoretical draw for many moves , . (White's bishop is useless; it cannot defend the queening square at a8 nor attack the black pawn on the light a4-square. If the white king heads towards the black pawn, the black king can move towards a8 and set up a fortress.) The players were not on speaking terms, however, so neither would offer a draw by agreement. Korchnoi said that it gave him pleasure to stalemate Karpov and that it was slightly humiliating . (As of 2014 this is the longest game played in a World Chess Championship final match, and also the only World Championship game to end in stalemate before 2007 .)