RCO

Also called CRO, a means of overcalling 1NT which retains the ability to show one suited major hands, as well as all 2 suited types:

2     : Rank - Both majors or Both Minors

2     : Color - Both red or Both black

2     : 1 suited hearts

2     : 1 suited spades

2NT :  Odd - non touching suits C/H or D/S

Vs a strong 1NT opening the Double may be used to replace the 2NT call to show Odd, non-touching suits.

Compiled by Lorne Russell 2005