The Odds and Evens defensive signalling convention
Here is the
non-frame based version of the The Odds and Evens defensive signalling convention.
The Odds and Evens defensive signalling convention is concerned with the situation when
declarer leads a suit which you are now void in.
An odd card indicates that you like the suit that you have discarded.
An eveb discard indicates that you do not like the suit that you have discarded and
it has lavinthal/McKenny convention overtones.