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Detail specifications 52CA - Level 1 ★
How to go to slam..
How to go to a trump slam
A good chance to win a NT slam is to hold 33 points (HCP+L). For a grand slam, you need 37. When there is a trump and short suits, honors are worth more than in NT. The process to go to slam will be tougher and more precise.
A good chance to win a NT slam is to hold 33 points (HCP+L). For a grand slam, you need 37. When there is a trump and short suits, honors are worth more than in NT. The process to go to slam will be tougher and more precise.
- First step : agree on a trump, use forcing bids
- Second step : check all controls are there... In order not to fail right away !
- Third and last step : Blackwood, to know about the pair Aces.
S | W | N | E |
---|---|---|---|
1 |
Pass |
||
2 |
Pass |
2 |
Pass |
3 |
K
7
5
3
A
9
A
K
Q
7
4
8
2
Exercise 20265 Pi is the agreed trump; the pair is going to start the controls and figure if a slam is possible or not.
How to go to a trump slam : find a trump suit, using the forcing sequences
Main sequences showing slam ambitions :
Main sequences showing slam ambitions :
- The responder's jump raise (in the opening suit) after a 1/1 shift
- The responder's raise (in the opening suit) after a 2/1 shift
- The responder's raise in one of the suits named by the opener, after a 4th suit forcing bid
- The opener's raise, at level 4, of the responder's minor suit
- The responder's raise at level 4 of the opener's minor suit
- The responder's raise after a reverse
- Splinters (both opener's or responder's)
- Direct jump to 4NT in response to a level 1 opening
S | W | N | E |
---|---|---|---|
1 |
Pass |
||
1 |
Pass |
2 |
Pass |
3 |
Pass |
A
K
7
6
5
A
K
6
4
8
2
8
5
Exercise E20134 The responder has shifted (1/1), now he jumps in the opening suit. that's a support with slam ambitions. the pair is going to start checking the controls.
Controls
Controls for a trump contract :
- A suit is under control when there is only one loser on the lead.
- Controls are always featured step by step skipping a suit means a control denial.
- When a suit is not under control, the last player gets back to the trump suitC'est un arrêt.
Controls for a trump contract :
- Ace or void (1st rank control : if the suit is led, you don't lose a trick)
- K or singleton (2nd rank control : if the suit is led, you lose 1 trick and no more)
A
K
6
A
Q
9
5
2
J
3
8
4
2
S | W | N | E |
---|---|---|---|
1 |
Pass |
1 |
Pass |
3 |
Pass |
3 |
Pass |
4 |
Pass |
4 |
Pass |
Pass |
5
K
J
10
6
A
K
Q
10
4
Q
6
5
Problem E6197 3♠ control initiation : ♠ is the 1st control
4 ♣ = ♣ control
North skips the ♥ suit, therefore, he doesn't control it. South doesn't control ♥ suit neither. They must stop at 4♥.
4 ♣ = ♣ control
North skips the ♥ suit, therefore, he doesn't control it. South doesn't control ♥ suit neither. They must stop at 4♥.
Q
J
8
4
A
A
Q
9
4
K
8
6
2
S | W | N | E |
---|---|---|---|
1 |
Pass |
2 |
Pass |
3 |
Pass |
3 |
Pass |
4 |
Pass |
4NT |
Pass |
5NT |
Pass |
7 |
Pass |
Pass |
Pass |
A
K
10
9
3
K
Q
10
7
6
K
8
3
Problem E9465 All controls are here. Time to check the Aces with a Blackwood.
RKC Blackwood (30-41)
RKC Blackwood is asking for the keys, not only the Aces. there are 5 keys : 4 Aces and K of trump. We recommend the 41-30 response (check guideline 64JD), instead of the 30-41, more common, which is :
RKC Blackwood is asking for the keys, not only the Aces. there are 5 keys : 4 Aces and K of trump. We recommend the 41-30 response (check guideline 64JD), instead of the 30-41, more common, which is :
- 5♣ : 3 or 0 key(s)
- 5♦ : 4 or 1 key(s)
- 5♥ : 2 keys
- 5♠ : 2 keys and Q of trump
- 5NT : 2 keys and a void
- "6something" : 3 or 1 key(s) and a void in the named suit
Q
J
8
4
A
A
Q
9
4
K
8
6
2
S | W | N | E |
---|---|---|---|
1 |
Pass |
2 |
Pass |
3 |
Pass |
3 |
Pass |
4 |
Pass |
4NT |
Pass |
5NT |
Pass |
7 |
Pass |
Pass |
Pass |
A
K
10
9
3
K
Q
10
7
6
K
8
3
Problem E9465 5NT = 2 keys and a void. In this sequence, it's obvious : the void is ♦.