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The TWERB defence to a strong 1♣ opening |
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This convention was devised, I believe, by Steve Shepard. 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). |
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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. |
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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: - |
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Over RHO 's 1♣ opening: - |
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| 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 |
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| The convention also applies after the bidding has started 1♣ pass 1♦ : - |
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Then, after the negative 1♦ response we have, by the next player: - |
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| 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 |
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The convention can also be used over a 2♣ opening and 2♦ response . |
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There is an excellent example of TWERB being used to good effect over a 2♣ opening in new-sheet 328 |
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There is a decent example of TWERB being used over a strong 1♣ in new-sheet 364 |
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Pattaya Bridge Club - |
www.pattayabridge.com |
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