Explicit Muller Games are PTIME

A tray-type container and a method of forming the same container is disclosed which is formed from a single blank of paperboard having a coating of a heat sealable film material so as to provide when fully set up, a rectangular bottom wall forming panel with hingedly connected upstanding sidewall and end wall forming panels which are integrally connected at the corners by pairs of triangular web members folded upon each other and against the outside faces of the end walls where they are secured by narrow top edge reinforcing and stiffening strips folded downwardly of the top edge into overlying relation with the top portions of the folded web members and the end wall, which reinforcing strips are heat sealed to corner connecting tab members folded with the corner web members into position beneath the strips.