Control bidding is a key part of looking for slam. While Keycard Blackwood will prevent you from bidding slam missing 2 Keycards, control bidding is how you can know that when you get to slam you won't be losing the first two tricks in a side suit. The standard method of control bidding is to show a first or second round control: an ace, a king, a singleton or a void. In order to control bid, you need to have suit agreement and be in a game forcing auction. See how well you know your control bids in this quiz.
You are South. None Vul. What is your call on the auction below?
J10987 
A98 
98 
K32
| West | North | East | South |
|---|---|---|---|
| 1 |
Pass | 1 |
|
| Pass | 3 |
Pass | ? |
Pass
4
4
4
4NT
You are South. None Vul. What is your call on the auction below?
K10987 AK3 K43 32
| West | North | East | South |
|---|---|---|---|
| 1 |
Pass | 1 |
|
| Pass | 3 |
Pass | ? |
Pass
4
4
4
4
4NT
You are South. None Vul. What is your call on the auction below?
K109872 8 AK2 KQ2
| West | North | East | South |
|---|---|---|---|
| 1 |
Pass | 1 |
|
| Pass | 3 |
Pass | ? |
Pass
4
4
4
4
4NT
Other
You are South. None Vul. What is your call on the auction below?
AQJ98 K1098 43 A2
| West | North | East | South |
|---|---|---|---|
| 1 |
|||
| Pass | 2* |
Pass | ? |
*Game forcing with 4 hearts
2NT
3
3
4
4
Other
You are South. None Vul. What is your call on the auction below?
AQ109 AJ92 Q987 3
| West | North | East | South |
|---|---|---|---|
| 1 |
Pass | 4* |
|
| Pass | 4 |
Pass | ? |
*Splinter Bid promising 4-card support, shortness in clubs, and game forcing values
Pass
4
4NT
5
Other
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