A very complicated and nowadays very rare form of Blackwood. Nearly all expert partnerships now use Roman Keycard Blackwood rather than Byzantine.
Did you know there is a new free resource from BMB – The Bridge Gazette?
Click here to take a look
Did you know there is a new free resource from BMB – The Bridge Gazette?
Click here to take a look
A very complicated and nowadays very rare form of Blackwood. Nearly all expert partnerships now use Roman Keycard Blackwood rather than Byzantine.