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Detail specifications UB14 - Level 1

The opener repeats his major

The repetition of his major by the opener after a 2/1 response
The repetition of his major by the opener may be the only option to keep the bidding at a low level. Let's not forget that the 2/1 response is auto-forcing.
  • The repetition of his suit by the opener is simply a waiting bid that shows a 1st zone hand (12-14HCP)
  • The jump repetition of his suit by the opener shows a solid 6 carder in a 2nd zone hand.(15-17HCP)
Exercice E20372
The opener has no choice but to repeat his , even though he only has 5 cards. (2SA would show 15-17HCP...which the opener does not have...)
 
SWNE
1 Coeur Pass 2 Trefle Pass
2 Coeur
Queen Spades
8 Spades
5 Spades
Ace Hearts
Jack Hearts
9 Hearts
7 Hearts
5 Hearts
2 Hearts
5 Clubs
King Diamonds
Queen Diamonds
4 Diamonds
Exercice E20373
The opener repeats his ; Here, he has 6 cards but 6 cards were not guaranteed by his rebid ! He could have had 5 cards only