TWERB Against strong 1C

	When the opponents open a strong 1♣(say Precision, 16+) then it is desirable to compete with shapely hands. TWERB (Two-Way Exclusion Relay Bids) is a convention that shows all single-suited and two-suited hands and may sometimes exploit the fundamental weakness of strong 1♣ systems – that playing Precision etc. the first two bids are totally artificial (stating points and not suits/distribution).
	As a defender, if you can find a fit quickly and pre-empt to the limit then that makes life difficult for the Precision side as they have no idea what suit(s) partner has nor if there is a fit.
	The scheme for TWERB is that any suit bid shows either the next suit up or the two suits above that. The two non-touching suits are shown by bidding NoTrumps and double shows a strong hand: -
	Over RHO 's 1♣ opening: -
	dbl = strong, at least as strong as opener's hand  1♦ = ♥'s OR ♠'s and ♣'s 1♥ = ♠'s OR ♣'s and ♦'s  1♠ = ♣'s OR ♦'s and ♥'s  2♣ = ♦'s OR ♥'s and ♠'s  1NT = ♣'s and ♥'s  OR ♦'s and ♠'s  The convention also applies after the bidding has started 1♣ pass 1♦ : -  Then, after the negative 1♦ response we have, by the next player: -  dbl = strong, at least as strong as opener's hand  1♥ = ♠'s OR ♣'s and ♦'s  1♠ = ♣'s OR ♦'s and ♥'s  2♣ = ♦'s OR ♥'s and ♠'s  1♥ = ♠'s OR ♣'s and ♦'s  1NT = ♣'s and ♥'s  OR ♦'s and ♠'s
	The convention can also be used over a 2♣ opening and 2♦ response .