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Detail specifications 43CE - Level 2

Double after 1 NT overcall

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The Responder after a 1 NT overcall
When your Opponent overcalls 1 NT, he has a balanced hand and 15-17HCP. You know immediately the respective strength of the two sides. With 9HCP and more the Responder automatically doubles showing his Partner that they have the majority of the points and is inviting him to let the Opps take the fall. The double is particularly juicy when Opps are vulernable.
SWNE
1
1NT
X
A
K
Q
J
9
7
4
V
10
5
4
9
3
Problem 5142 Your partner has at least 12HCP. With 9HCP or more - it's your team that have the point majority. You have to double to score in your column. Here you're going to take the first 5 tricks...
 
SWNE
1
1NT
X
Pass
10
8
4
7
4
2
A
K
Q
J
9
7
4
Problem 1035 Don't forget, that when your double is punitive on a 1 NT over call, you are going to be on lead. If Opps stay in this contract, begin the offensive play by leading the King
 
 
The follow-on bids after a 1 NT over call doubled : Opener has a regular distribution.
With a regular distribution, Opener always accepts the punitive invitation. The stronger his opening, the harder the fall !
SWNE
1
1NT
X
Pass
Pass
K
J
9
4
6
5
K
Q
5
A
10
6
4
Problem 20206 With these 13HCP that are backed up with intermediary cards, happily leave the double and pass !
 
SWNE
1
1NT
X
Pass
Pass
A
J
4
A
J
10
9
6
3
A
3
6
5
Problem 20207 PASS
No reason not to leave the double by bidding 2 . Thanks to your 2 aces, you can establish 4 tricks.
 
 
The follow-on bids after a 1 NT over call doubled : Opener has an irregular distribution
With a very irregular distribution, Opener prefers not to leave the punitive double, but to find a winning contract, especially if his team is vulnerable and Opps are non vulnerable.
SWNE
1
1NT
X
Pass
2
K
J
10
7
5
K
J
10
7
5
K
5
9
Problem 20202 Opener bids showing his major 2-suiter 5-5 and a limited point opening.
 
J
3
K
4
K
Q
10
9
J
8
6
5
2
SWNE
1
1NT
X
Pass
4
K
Q
10
9
Q
J
10
9
8
5
3
A
4
Problem 20204 With this hand, Opener prefers to try for Game, than play defence against 1 NT
 
 
The follow-on bids after a 1 NT over call doubled : of course all double bids made by Opener's team are punitive.
SWNE
1
1NT
X
2
X
K
10
8
4
6
5
K
Q
5
A
10
6
4
Problem 20200 With 4 rather good trump cards, don't let this opportunity pass you by : punish the Opp
 
K
7
3
K
7
3
Q
J
10
7
6
7
4
SWNE
1
1NT
X
2
Pass
A
8
4
A
9
6
5
5
A
10
9
8
6
Problem 20202 Leave the bid up to your P who will double with delight as he holds Q-J-10-7-3 !