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Detail specifications UB12 - Level 1 ★
2NT or 3NT rebids
2NT or 3NT rebids by the opener
- On a 1 in a major opening and after a 2/1 reponse, a 2NT rebid shows a regular hand 5/3/3/2 with 15 to 17HCP that could not be opened 1NT.
- On a 1 ♦ opening and a 2 ♣ response, the 2BT rebid shows a regular hand with 12-14HCP. It could not show 15-17HCP, as such a hand would have been opened 1NT
- In all cases, in that sequence (2/1 suit change by the responder), a 3NT rebid shows a 3rd zone hand (18-19HCP)
S | W | N | E |
---|---|---|---|
1 |
Pass |
2 |
Pass |
2NT |
A
K
10
8
4
3
A
Q
J
Q
7
5
3
Exercise E20366 2NT With 15-17H Could not bid 1NT because of his 5 cards in ♥
S | W | N | E |
---|---|---|---|
1 |
Pass |
2 |
Pass |
3NT |
K
10
6
A
Q
10
7
3
A
Q
3
K
4
Exercise E20367 The openetr has a regular 3rd zone hand (18-19HCP). With a strong hand, the responder can continue the bidding to investigate a slam.