A setup is proposed to play a quantum version of the famous bimatrix game of
Prisoners' Dilemma. Multi-slit electron diffraction with each player's pure
strategy consisting of opening one of the two slits at his/her disposal are
essential features of the setup. Instead of entanglement the association of
waves with travelling material objects is suggested as another resource to play
quantum games.Comment: Latex, 7 pages, 2 eps figures, submitted to Physics Letters
