There are 3 different versions of the Jaques Staunton Chequerboard. The 23 inch board is very large with 63mm squares. The 20 inch board has 50mm squares. And the 18 inch board has 43mm squares.
The 23" Staunton is the ideal Chess Board to use with the John Jaques Staunton Reintroduction 4" King Chess Set.
