Session 4.2 : Responder invitation- Opener reaction
Session program
- The 2NT rebid, invitation to game
- The 4NT rebid, invitation to slam
- Opener reaction
Remind the pupils of important levels and useless levels
1NT, 3NT (game), 6NT (small slam) and 7NT (grand slam).
The other levels don’t allow scoring anything more: 2NT, 4NT and 5NT are called the "useless levels". They will be used to invite the partner to playing a "useful" contract.
Game invitational bid
1 |
2 |
3 |
4 |
 A 9 6 4 K 6 5 Q 7 6 5 6 3 |
J 6 3 A 5 4 3 9 7 2 10 8 4 |
K J 4 A 8 4 Q J 5 9 6 4 3 |
Q 2 J 9 3 K 10 5 2 Q 7 5 4 |
3NT |
Pass |
3NT |
? |
Hand Nr. 4 with its 8 points may represent a problem for them as the side’s strength might be 24, 25 or 26 points. What will they suggest?
Pass is too pessimistic if the opener has 17 or 18 points.
3NT is too optimistic if the opener has 16 points.
With 16 points, the opener should pass.
With 17 or 18 points, the opener should bid 3NT
The 2NT rebid is a game invitational
The small smal invitation bid
Place, one after the other, the following hands on the table for a rebid after a 1NT opening
5 |
6 |
7 |
| A Q 3 J 6 3 A Q 3 A 8 6 4 |
A 8 4 Q 7 3 A 9 8 K J 9 5 |
K J 5 A Q 4 Q J 3 2 K 8 7 |
6NT |
3NT |
3NT |
Hand Nr. 7 has 16 points and might be a problem for them, the side’s strength being 32, 33 or 34 points.
The 3NT bid is too pessimistic if the opener has 17 or 18 points (16 + 17 = 33).
The 6NT bid is too optimistic if the opener has only 16 points (16 + 16 = 32).
Suggest to them to use the useless level of 4NT.
With 16 points, the opener passes.
With 17 or 18 points, the opener bids the small slam at 6NT.
The 4NT rebid is a small slam invitational bid.
K Q 6
A J 2
A Q J 5
K 4 2
In this case, the opener can absolutely not pass and should bid 6NT with 16 points and 7NT with 17 or 18 points
Session first hand (4.2.1)
Establishing honors
Hand 4.2.1 Dealer North
| K J 4 10 5 9 6 4 3 A 9 6 3 |
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| A 8 K J 8 6 4 Q 10 7 5 7 2 |
N |
9 7 5 2 A 7 J 8 2 J 10 8 5 |
||
W |
E |
|||
S | ||||
| Q 10 6 3 Q 9 3 2 A K K Q 4 |
||||
South |
West |
North |
East |
I pass |
I pass |
||
1NT |
2NT |
||
I pass |
Lead: 4
Bidding: 2NT, game invitational, opener decision
Card play: establishing honors
Score: 2NT =: 120 NS
Session second hand (4.2.2)
Establishing a long suit.
Hand 4.2.2 Dealer East
| A J 5 A 10 7 K 7 A 8 7 5 4 |
||||
| 10 7 3 5 4 2 Q J 10 8 Q 10 3 |
N |
9 8 4 2 J 9 6 3 6 3 2 J 9 |
||
W |
E |
|||
S | ||||
| K Q 6 K Q 8 A 9 5 4 K 6 2 |
||||
South |
West |
North |
East |
I pass |
|||
1NT |
4NT |
||
6NT |
I pass |
Lead: Q
Bidding: 4NT invitational to small slam
Card play: establishing a long suit
Score: 6NT =: 990 NS
Session third hand (4.2.3)
Managing communication
Hand 4.2.3 Dealer South
| 8 5 3 A Q 10 A Q 5 2 A 5 4 |
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| J 10 9 2 7 4 3 8 7 6 4 10 9 |
N |
K 7 4 9 6 5 J 10 3 Q J 8 2 |
||
W |
E |
|||
S | ||||
| A Q 6 K J 8 2 K 9 K 7 6 3 |
||||
South |
West |
North |
East |
1NT |
4NT |
||
I pass |
Lead: J
Bidding: 4NT invitational to small slam, opener decision
Card play: play the cards in the right order
Score: 4NT +1: 460 NS.
(or +2, discards being rather difficult)
Session fourth hand (4.2.4)
Defence play: play the short hand honor.
Hand 4.2.4 Dealer West
| 8 4 3 Q 10 5 K 5 2 K 7 4 3 |
||||
| Q J 10 9 7 A 8 4 7 6 8 6 2 |
N |
K 6 9 7 2 Q J 10 8 J 10 9 5 |
||
W |
E |
|||
S | ||||
| A 5 2 K J 6 3 A 9 4 3 A Q |
||||
South |
West |
North |
East |
I pass |
I pass |
I pass |
|
1NT |
2NT |
||
3NT |
I pass |
Lead: Q
Bidding: 2NT; game invitational, opener’s decision
Declarer play: Immediately establish the Hearts.
Defence play: East should play the King of Spades on the first trick to avoid blocking the suit and allow to set the contract.
Score:
3NT – 1: 50 EW
3NT =: 400 NS