Indeed, the wartime distillation of Metzinger's Cubism came with an acceleration in the type of games that could be played tactically with paradox by manipulating conflicting predications of planimetric flatness and the perspectival depth of space.
Here, Metzinger uses a checkerboard and wooden table to establish a clearly demarcated fore-plane that is non-fixed in relation to which its 'hovering' chess pieces are situated.