MY ATTENTION was recently drawn to what appears to be a chess or draughts board carved into the well trodden paving flags on the city wall near Victoria Bar.

The black squares are indicated by a cross. It is quite neatly done and must have taken some time to inscribe. Despite being in a job where I have access to quite historically knowledgeable people, no one has been able to explain, with any confidence, why the board is there, or who put it there, or when?

I am hoping that one of your readers will be able to supply the answers.

Richard Aitken, Alness Drive, Acomb Park, York.