Adding to this effect were the window on the right-hand side of the composition, showing a landscape beyond the central scene, and a round, convex mirror on the wall to the left, reflecting the foreshortened figures of the players and the chessboard, distorted according to the perspective of the spectator, who would be standing facing the scene. It thus achieved the astonishing feat of integrating three planes – window, room and mirror – into one space. It was, thought Julia, as if the spectator were reflected between the two players, inside the painting.

She went over to the easel. Arms folded, she stood looking at the painting for a long time, utterly still, apart from drawing occasionally on her cigarette and screwing up her eyes against the smoke. One of the chess players, the one on the left, looked to be about thirty-five. His brown hair was shaved just above the ears in the medieval fashion; he had a strong, aquiline nose and a look of intense concentration. He was wearing a doublet painted in a vermilion that had admirably withstood both the passage of time and the oxidation of the varnish. Round his neck he wore the insigne of the Golden Fleece and near his right shoulder an exquisite brooch, whose filigree pattern was rendered in minute detail, right down to the tiny gleam of light on each precious stone. He was sitting with his left elbow and right hand resting on the table on either side of the board. Between the fingers of his right hand he was holding one of the chess pieces: a white knight. By his head there was an identifying inscription in Gothic lettering: FERDINANDUS OST. D.

The other player was thinner and about forty. He had a smooth forehead and almost black hair turning to grey at the temples, where the finest of white lead brush marks were just distinguishable.