| W | N | E | S |
| 1♦ | Pass | 2♣ | |
| Pass | 2NT | Pass | ??? |
| North♠A84♥KQT7♦KQ32 ♣92 |
||
| West♠K632 ♥52♦984 ♣JT87 |
East♠JT95♥J964♦J5 ♣543 |
|
| South♠Q7♥A83♦AT76 ♣AKQ6 |
Heidi's Answer
I like the auction so far. North cannot show their four card ♥ suit in the auction because that would create a game force so therefore they must rebid 2NT. But they do have the rest of the suits stopped so 2NT is a fine bid over 2♣. This 2NT bid show a MINIMUM opening hand and South is allowed to "Pass". North has a balanced hand with less than 15 HCP. Perfect. So what does South do over 2NT? They have choices: 1) Make a QUANTITATIVE 4NT bid 4NT is this auction says "Partner are you MINIMUM or MAXIMUM for your 2NT bid? With a minimum, "Pass". With a maximum bid 6NT. The reason why this is quantitative is because the last bid in the auction (2NT) was a natural NT bid with a point count associated with it. In this auction the 2NT bid showed about 12 to 14 HCP. A minimum opening hand for North. 2) Gerber Since the last bid in the auction (2NT) was a natural NT bid, a jump to 4♣ would be Gerber. Gerber asks "Just how many Aces do you have over there Partner?" 3) Bid 6NT Partner has an opening bid, South has 19 HCP. There must be a slam!What do I think of all the different bids South could make?
1) 4NT I like this bid. Partner could have 12 HCP. I'm too balanced to want to be in a slam with that hand. I want Partner to have either 14 HCP or a really good 13 HCP. This is how I ask. 2) 4♣ I don't really care if Partner has the one Ace I am missing or not. That won't help me at all. Why does this not help you Heidi? Don't you need to know about a ♠ control before you bid the slam? If Partner opened with 12 HCP and has the one Ace I am missing I have all four Aces but together we have only 31 HCP between us. We simply won't have enough tricks. Sure we will get four Aces. But that's four tricks only. I need more. I need fillers. With 31 HCP I could be missing two Kings and a Queen. That's not good. There is too much potential to lose two tricks that way. But if Partner opened with 14 HCP and no Aces we will have 33 HCP and should have enough tricks to make the small slam. Sure the opponents will take their Ace but I should have enough values to take 12 tricks after that. There will be only three points missing. If I am lucky I will be missing three Jacks. Those should drop. If I am unlucky I will be missing a King. Maybe I can finesse it. As for the Spade control -- assuming Partner will accept with 14 HCP and I have 19 HCP. That means together we have 33 HCP. Partner rates to have a ♠ control. Sure technically we could be off SPECIFICALLY the AK♠ and the Opponents can take two tricks right off the top. But then they have to lead a ♠. They might not know to lead a ♠ if I am so unlucky to be missing those exact specific cards. It is a bit of a risk but life is not without risk. 3) 6NT I feel I am just hanging Partner out to dry for opening the bidding if I do this. If Partner opened on 12 HCP we just don't have enough points to make a small slam.What will North do over 4NT?
North is MAXIMUM for their bid. They have 14 HCP. They will raise 4NT to 6NT. The final contract will be 6NT.Will 6NT make?
Sadly I don't think North will be able to take 12 tricks in NT. They have 11 easy tricks but no way to get a 12th trick. If East leads a low ♥ then North can duck it around to their Ten of ♥ and get an easy trick that way to make their slam. But East has a nice TOP of SEQUENCE lead -- the J♠. They will probably lead that. Any lead but a ♥ and North should go down in the slam.
Wednesday, October 25, 2017
Do we DARE? We do! But HOW?
Here is your hand:
♠A9
♥AKQT763
♦-
♣A653
The Opponents are silent during your auction.
Partner opens the bidding 1♦. You respond 1♥. Partner rebids 2♣. It is your turn to bid. What is your call?
Hint: Think very carefully as to what cards you REALLY need from Partner to make a slam.
(I hope you didn't think "the Ace of ♦!" -- Sure it would be nice to have but do you REALLY need it?"
Since I'm in an extremely good mood today I will give you links. Some you may need. Some you will not. All contain useful information and one actually contains the answer!
Blackwood:
Lesson: Blackwood -- An Introduction
Lesson: Blackwood -- To Bid or Not to Bid
Lesson: Blackwood or Quantitative?
Lesson: Blackwood -- Asking for Kings
Lesson: Blackwood -- A Summary
Gerber:
Lesson: Gerber - An Introduction
Lesson: Gerber - To Bid or Not to Bid?
Lesson: Gerber or 4NT Quantitative?
Lesson: Gerber -- Asking for Kings
Lesson: Gerber -- A Summary
Trump Suit Asks:
Lesson: Grand Slam Force
Lesson: Trump Suit Quality - 5 of the Major
Lesson: Trump Suit Quality Exercises
Show Answer
Sunday, January 15, 2017
Gerber -- A Summary
WARNING! The following post talks about GERBER. Gerber is a bid used by more experienced players. If you are a new player do NOT bother reading this post. When you have played a bit more and know a bit more you can learn Gerber. For now, do not bother.
Since you do not know which Aces Partner has you should NOT bid Gerber if you have a void in a suit OR a useless doubleton.
Many players think you MUST ask for Aces in order to bid a slam. This is not true. You only ask for Aces if you need to know how many Aces Partner has in their hand. If you do NOT need to know that information then don't ask for it.
Once the Partnership has gone through Gerber to ask their Partner for the number of Aces they hold, they can continue bidding Gerber if they want to know the number of Kings. In order to do this the Partnership MUST hold ALL the Aces. You do not ask Partner for the number of Kings they hold if the partnership is missing an Ace. If you cannot bid a small slam after going through Gerber and finding out the Partnership is off one Ace then you shouldn't have bid Gerber in the first place.
After getting a response from bidding 4♣, a bid of 5♣ is now asking for the number of KINGS Partner holds. Note that this means that the Partnership CANNOT sign off in 5♣ after bidding Gerber. The responses are:
Gerber -- A Summary
This post is designed to summarize all the previous posts on Gerber. Please read the following posts to see the information in detail: Gerber - An Introduction Gerber - To Bid or Not to Bid? Gerber or 4NT Quantitative? Gerber -- Asking for Kings Gerber is a convention bridge players use to ask their Partner how many Aces they hold after the Partner has made a natural bid of NT either at the beginning or the ending of the auction. In these auctions, a jump bid to 4♣ says nothing about the ♣ suit -- it is asking their Partner how many Aces they hold. Bridge players call this 4♣ bid Gerber.- Gerber can be bid after an opening bid of NT
- Gerber can be bid after a NT response
- Gerber can be bid after a NT rebid
- Gerber can be bid after Stayman has been bid
- Gerber can be bid after making a Jacoby Transfer
- Gerber can be bid after Partner made a NT Overcall
What are the responses to Gerber?
| 4♦ | Partner I have either zero or all four Aces |
| 4♥ | Partner I have one Ace |
| 4♠ | Partner I have two Aces |
| 4NT | Partner I have three Aces |
| 5♦ | Partner I have either zero or all four Kings |
| 5♥ | Partner I have one King |
| 5♠ | Partner I have two Kings |
| 5NT | Partner I have three Kings |
Saturday, January 14, 2017
Gerber -- Asking for Kings
WARNING! The following post talks about GERBER. Gerber is a bid used by more experienced players. If you are a new player do NOT bother reading this post. When you have played a bit more and know a bit more you can learn Gerber. For now, do not bother.
Let's practice your responses to Gerber asking for Kings. On the following hands you opened the bidding 1NT. Partner responded 4♣ (Gerber). You gave your answer and then Partner bids more Gerber. They bid 5♣ guaranteeing all the Aces and asking for the number of Kings you hold. What will you bid now and what are you telling Partner with your bid?
Hand 1
♠ AQJ5
♥ J642 ♦ AT ♣ AJ3 ♠ KQ
♥ Q982 ♦ K65 ♣ AJ93 ♠ K4
♥ AJ2 ♦ AJ983 ♣ A54 ♠ AJ7
♥ A6 ♦ A976 ♣ A843 ♠ QJT8
♥ Q6 ♦ KQ5 ♣ AJ63 ♠ K6
♥ A43 ♦ K876 ♣ AJT2 ♠ KQ2
♥ K7 ♦ AJT85 ♣ KJ8 ♠ KT8
♥ KQJ8 ♦ KQ4 ♣ KT7 ♠ A7
♥ A96 ♦ Q853 ♣ AKT9 ♠ KQ92
♥ KQJ7 ♦ QJ2 ♣ Q2 ♠ A86
♥ 954 ♦ AT95 ♣ AK9 ♠ A74
♥ KQJ ♦ AQ5 ♣ T653 ♠ KT98
♥ KJ5 ♦ KQ98 ♣ A2 ♠ KQ
♥ KQ52 ♦ K97 ♣ QJ75 ♠ AJT2
♥ KQ5 ♦ J985 ♣ KQ ♠ KQJ8
♥ KT8 ♦ KT7 ♣ KQ4 ♠ AJ7
♥ KJ ♦ A976 ♣ A843 ♠ AJ7
♥ A6 ♦ A843 ♣ A976 ♠ QJ94
♥ KJ7 ♦ QJ2 ♣ AQJ ♠ QJ2
♥ Q2 ♦ KQ92 ♣ KQJ7 ♠ Q963
♥ QJ9 ♦ A6 ♣ AQJ9 ♠ A843
♥ A976 ♦ AJ7 ♣ K6 ♠ KQ43
♥ A5 ♦ Q85 ♣ AT32 ♠ 54
♥ AJ3 ♦ AK96 ♣ AJT2 ♠ Q2
♥ QJ2 ♦ KQJ7 ♣ KQ92 ♠ A65
♥ A84 ♦ AT83 ♣ A97 ♠ KT
♥ AQ52 ♦ A43 ♣ QJ85 ♠ AQ5
♥ J3 ♦ KQ974 ♣ KQ9 ♠ K742
♥ 95 ♦ A62 ♣ AKJ4 ♠ AQJ
♥ J97 ♦ QJ62 ♣ KJ5 ♠ Q72
♥ J95 ♦ AT ♣ AKJ76 ♠ Q7
♥ AJ2 ♦ QJ53 ♣ AK53 ♠ A843
♥ A976 ♦ A6 ♣ AJ7 ♠ KQ43
♥ A5 ♦ A85 ♣ AT32 ♠ KQ54
♥ A5 ♦ A876 ♣ A95 ♠ A843
♥ A976 ♦ AJ7 ♣ A6 ♠ AKT8
♥ K3 ♦ K97 ♣ Q642 ♠ KQJ7
♥ KQ92 ♦ Q2 ♣ QJ2 ♠ QJT8
♥ A742 ♦ A5 ♣ A84 ♠ QT8
♥ A4 ♦ AQ876 ♣ K87 ♠ AT83
♥ A97 ♦ A84 ♣ A65 ♠ KQ6
♥ AK73 ♦ T965 ♣ K6 ♠ 97
♥ KQJ7 ♦ AJ32 ♣ KJ3
Gerber -- Asking for Kings
For an introduction on Gerber please read the following posts first: Gerber - An Introduction Gerber - To Bid or Not to Bid? Gerber or 4NT Quantitative? Once the Partnership has gone through Gerber to ask their Partner for the number of Aces they hold, they can continue bidding Gerber if they want to know the number of Kings. In order to do this the Partnership MUST hold ALL the Aces. You do not ask Partner for the number of Kings they hold if you are missing an Ace. If you cannot bid a small slam after going through Gerber and finding out the Partnership is off one Ace then you shouldn't have bid Gerber in the first place. In order to ask for Kings you should be interested in a GRAND. Partner is allowed to ignore your question and leap to the 7 level if they have a hand that can take all the tricks knowing the partnership has all the Aces. After getting a response from bidding 4♣, a bid of 5♣ is now asking for the number of KINGS Partner holds. Note that this means that the Partnership CANNOT sign off in 5♣ after bidding Gerber. The responses are:| 5♦ | Partner I have either zero or all four Kings |
| 5♥ | Partner I have one King |
| 5♠ | Partner I have two Kings |
| 5NT | Partner I have three Kings |
| You | Partner | 1NT | 4♣ |
| (Answer to number of Aces) | 5♣ |
| ? |
Friday, January 13, 2017
Gerber or 4NT Quantitative?
WARNING! The following post talks about GERBER. Gerber is a bid used by more experienced players. If you are a new player do NOT bother reading this post. When you have played a bit more and know a bit more you can learn Gerber. For now, do not bother.
This post tests your knowledge of bidding either 4♣ (Gerber) or 4NT (Quantitative) over a 1NT opener.
Please read the following posts for a review:
Bidding - Responding to 1NT with a Balanced Hand
Gerber - To Bid or Not to Bid?
Many players think you MUST ask for Aces in order to bid a slam. This is not true. You only ask for Aces if you need to know how many Aces Partner has in their hand. If you do NOT need to know that information then don't ask for it.
Take this hand:
♠AJ6
♥K8
♦K864
♣AJ64
You have 16 HCP and Partner opens the bidding 1NT. Should you ask for Aces? No. You do not care how many Aces Partner has. You need to know if Partner had 17 HCP to open the bidding 1NT or only 15 HCP. If Partner had 17 HCP you want to be in 6NT. You cannot be off 2 Aces. But if Partner opened the bidding with 15 HCP you don't want to be in 6NT -- even if Partner has 2 Aces. You just won't have enough tricks.
On this hand you would respond 4NT. That asks Partner to bid 6NT with a maximum and Pass with a minimum. Which is exactly what you want Partner to do. You don't care about Aces. You care about how many HCP Partner has.
Take another hand:
♠6
♥AKJT876532
♦4
♣4
If Partner opens the bidding 1NT you don't care how many HCP they have. The only thing you care about is the number of Aces Partner is holding. They could hold the ♠KQJ, the ♦KQJ and the ♣KQJ. All those cards are USELESS to you. Even the Q♥ is useless to you. You know Partner has two ♥ so the Q♥ will fall if the opponents have her.
With this hand you would respond 4♣ (Gerber) to ask Partner how many Aces they have. Then you would place the contract appropriately.
Let's test this out. On each of the hands your Partner opens the bidding 1NT. Your turn to bid. Do you ask Partner about their point count by bidding 4NT or ask Partner about the number of Aces they hold by bidding 4♣?
Hand 1
♠ 3
♥ 8 ♦ AKJT876532 ♣ A ♠ KQ8
♥ QJ ♦ AQ52 ♣ QT64 ♠ AK
♥ KQJ987542 ♦ 8 ♣ 2 ♠ AJ6
♥ A4 ♦ AQ85 ♣ Q954 ♠ KQJT97542
♥ 6 ♦ 8 ♣ KQ ♠ KT9
♥ Q98 ♦ AJ3 ♣ KQJ9 ♠ KQJT97542
♥ 6 ♦ A ♣ KQ ♠ Q98
♥ AK ♦ JT85 ♣ KQJ7 ♠ AKJT876532
♥ A ♦ 3 ♣ 8 ♠ AJ8
♥ J43 ♦ AK2 ♣ K842 ♠ AJ5
♥ AJ7 ♦ AT5 ♣ Q954 ♠ KQ
♥ KQJT97542 ♦ A ♣ 6 ♠ KQJ
♥ A92 ♦ KJT ♣ Q753 ♠ 8
♥ AK ♦ KQJ987542 ♣ 2 ♠ K62
♥ A85 ♦ AT85 ♣ AQ4 ♠ A
♥ KQ ♦ KQJT97542 ♣ 6 ♠ 43
♥ Q72 ♦ AKJ8 ♣ KQJ3 ♠ 8
♥ KQ ♦ KQJT97542 ♣ 6 ♠ QJT
♥ AJ5 ♦ QJ54 ♣ AJ3 ♠ AKQ98542
♥ 9 ♦ KQ5 ♣ 2 ♠ 2
♥ AKQ98542 ♦ KQ5 ♣ 9 ♠ JT4
♥ KJ8 ♦ KJ9 ♣ AKJ2 ♠ AJT
♥ KJ ♦ QJT9 ♣ KJ32 ♠ 8
♥ AKJT876532 ♦ 3 ♣ A ♠ A63
♥ A63 ♦ AJ84 ♣ A92 ♠ AQT
♥ AK7 ♦ KT8 ♣ J865 ♠ KQ
♥ KQJT97542 ♦ 8 ♣ 6 ♠ J2
♥ AK4 ♦ K943 ♣ AJ86 ♠ K83
♥ A92 ♦ KQJ ♣ K654 ♠ AKQT87654
♥ 2 ♦ 6 ♣ A6 ♠ AQ2
♥ A87 ♦ QT74 ♣ AT4 ♠ KQ5
♥ 2 ♦ AKQ98542 ♣ 9 ♠ A64
♥ QT8 ♦ AQ6 ♣ A653 ♠ A6
♥ AKQT87654 ♦ 6 ♣ 2 ♠ 94
♥ KT3 ♦ AQ64 ♣ AQJ5 ♠ KQJ987542
♥ 2 ♦ 8 ♣ AK ♠ AJ7
♥ AQ6 ♦ A94 ♣ JT86 ♠ 6
♥ A6 ♦ AKQT87654 ♣ 2
Thursday, January 12, 2017
Gerber - To Bid or Not to Bid?
WARNING! The following post talks about GERBER. Gerber is a bid used by more experienced players. If you are a new player do NOT bother reading this post. When you have played a bit more and know a bit more you can learn Gerber. For now, do not bother.
What about if Partner doesn't have ANY Aces? Wouldn't we go down if we bid that high?
Yes, if Partner doesn't have any Aces we cannot bid past the 3 level. However it is mathematically impossible for Partner to not have any Aces when we hold the hand we have. Construct the WORST hand possible for Partner. If they have 15 HCP (which is their minimum to open 1NT) then they have an Ace.
So basically we bid Gerber when we need to know the NUMBER of Aces Partner has.
What about this hand? If Partner opened the bidding 1NT and you had the following hand could you bid Gerber?
♠KQT987653
♥2
♦KQ5
♣
This seems VERY similar to the last hand. However there is a BIG difference. Imagine if you bid 4♣ (Gerber) and Partner responds 4♠. Partner is telling you they have TWO Aces. Unfortunately you don't know WHICH Aces they are! Partner could hold any of these hands:
Since you do not know which Aces Partner has you should NOT bid Gerber if you have a VOID in a suit.
For the same reason you should NOT bid Gerber with a useless doubleton. A useless doubleton means that there are two cards in the suit and neither of the cards are the Ace or King of the suit.
For example this hand:
♠AKQT876532
♥Q2
♦A
♣
Partner opens the bidding 1NT. Does it help you to ask for Aces?
No. You need to know if Partner has a SPECIFIC Ace. You need the A♥ and the K♥. Only knowing if Partner has 1 Ace does not help at all.
Let's take a look at a few hands. If your Partner opened 1NT should you bid Gerber? If the answer is "NO" state the reason(s) why.
Hand 1
♠ ♥ 8 ♦ AKJT876532 ♣ AK ♠ KQJT97542
♥ 8 ♦ KQ ♣ 6 ♠ KQ
♥ KQJT97542 ♦ 86 ♣ ♠ 9
♥ A5 ♦ AKQ9852 ♣ KQJ ♠ 8
♥ AK ♦ KQJ987542 ♣ 2 ♠ 86
♥ A ♦ KQ ♣ KQJT9742 ♠ KQ
♥ KQJT97542 ♦ A ♣ 6 ♠ KQJ
♥ 2 ♦ AKQ98542 ♣ 9 ♠ 2
♥ 6 ♦ AK ♣ AKQT87654 ♠ 2
♥ ♦ AKQ ♣ KQJ987542 ♠ 6
♥ A6 ♦ AKQT87654 ♣ 2 ♠ KQJ987542
♥ 2 ♦ 8 ♣ AK ♠ KQJT97542
♥ 6 ♦ A ♣ KQ ♠ AK
♥ KQJ987542 ♦ 65 ♣ ♠ 2
♥ AKQ98542 ♦ KQ5 ♣ 9 ♠ A6
♥ AKQT87654 ♦ 6 ♣ 2 ♠ AKJT876532
♥ A ♦ 83 ♣ ♠ 8
♥ AKJT876532 ♦ 3 ♣ A ♠ KQJT97542
♥ 6 ♦ 8 ♣ KQ ♠ A
♥ Q3 ♦ KQJT97542 ♣ 6 ♠ AKJT876532
♥ 3 ♦ 8 ♣ A ♠ AKQT87654
♥ 2 ♦ 6 ♣ A6 ♠ AKQ98542
♥ 9 ♦ KQJ5 ♣ ♠ 8
♥ KQ ♦ KQJT97542 ♣ 6
Gerber
Please read the previous post to get a little information on Gerber: Gerber - An Introduction Why would we bid Gerber? Say my Partner opened the bidding 1NT and I hold this hand: ♠KQJ98653 ♥2 ♦KQ5 ♣3 What do I need from Partner in order to take ALL the tricks? Basically just all four Aces. That's it. I don't actually care how many points Partner has -- I just want to know how many Aces Partner has. If Partner has three Aces we should be able to take 12 tricks if ♠ are trump. However with only one or two Aces we just want to play in 4♠. No sense in bidding any higher than that.| Hand A | Hand B | Hand C | Hand D |
| ♠42♥KQJ8♦JT6♣AKJ8 | ♠42♥AQ83♦JT6♣AKJ8 | ♠A2♥AQ83♦JT6♣A842 | ♠A4♥A854♦AT6♣A842 |
| Partner has 1 Ace.With this hand we want to play in only 4♠. There is no point in being any higher. The Opponents can take three Aces right away. | Partner has 2 Aces.With this hand we want to play in only 4♠. There is no point in being any higher. The Opponents can take two Aces right away. | Partner has 3 Aces.With this hand we want to play in 6♠. We should be able to take 12 tricks with ♠ as trump. | Partner has 4 Aces.With this hand we want to play in 7NT. We should be able to take 13 tricks! |
| Hand E | Hand F | Hand G | Hand H |
| ♠42♥QJ8♦AT62♣AKJ8 | ♠A2♥K86♦AJ62♣KJ86 | ♠A2♥KQ83♦T62♣AQ42 | ♠A4♥AJ54♦JT62♣KQ2 |
| Partner has 2 Aces.With this hand we want to play in only 4♠. There is no point in being any higher. The Opponents can take two Aces right away. | Partner has 2 Aces.With this hand we want to play in 6♠. The Opponents can only take their A♥! | Partner has 2 Aces.With this hand we want to play in only 4♠. There is no point in being any higher. The Opponents can take two Aces right away. | Partner has 2 Aces.With this hand we want to play in 6♠. The Opponents can only take their A♦! |
Wednesday, January 11, 2017
Gerber - An Introduction
WARNING! The following post talks about GERBER. Gerber is a bid used by more experienced players. If you are a new player do NOT bother reading this post. When you have played a bit more and know a bit more you can learn Gerber. For now, do not bother.
This is GERBER. Responder, by bidding 4♣, is asking the 1NT Opener to tell them how many Aces they have in their hand.
This is GERBER. Responder, by bidding 4♣, is asking the 2NT Opener to tell them how many Aces they have in their hand.
This could be bid after a NT response:
This is GERBER. Opener, by bidding 4♣, is asking the 2NT Responder to tell them how many Aces they have in their hand.
This could be bid after a NT rebid:
This is GERBER. Responder, by bidding 4♣, is asking the 1NT Rebidder to tell them how many Aces they have in their hand.
This can be bid after Stayman has been bid:
This is GERBER. Responder, by bidding 4♣, is asking the 1NT Opener to tell them how many Aces they have in their hand. Responder may or may not have a ♥ fit for Partner.
This can also be bid after a Jacoby Transfer:
This is GERBER. Responder, by bidding 4♣, is asking the 1NT Opener to tell them how many Aces they have in their hand. The Partnership may or may not end up in ♠. They should have a ♠ fit in any case.
This can be bid after Partner made an OVERCALL:
This is GERBER. Advancer, by bidding 4♣, is asking the 1NT Overcaller to tell them how many Aces they have in their hand.
This is GERBER. Advancer, by bidding 4♣, is asking the 1NT Overcaller to tell them how many Aces they have in their hand.
Do you need to memorize this chart?
Not really. After the 4♣ bid the first possible response you would make is for the worst possible case. Zero Aces. So the first possible bid after 4♣ is 4♦. The second possible bid you would make after 4♣ is the second worst response. So 4♥ would be the second worst response which is only 1 Ace. And so on. We need to group the worst response (zero Aces) with the best response (four Aces) because the Gerber bidder should be able to tell which one Partner has.
There is quite a bit more to Gerber that I will get to in the next few days. For now practice your responses to Gerber.
On the following hands you have opened the bidding 1NT. Your Partner has bid 4♣ which we now know is Gerber. What is your response on each of the hands and what are you telling Partner with your bid?
Hand 1
♠ AQJ5
♥ J642 ♦ AT ♣ AJ3 ♠ KQ
♥ Q982 ♦ K65 ♣ AJ93 ♠ K4
♥ AJ2 ♦ AJ983 ♣ A54 ♠ AJ7
♥ A6 ♦ A976 ♣ A843 ♠ QJT8
♥ Q6 ♦ KQ5 ♣ AJ63 ♠ K6
♥ A43 ♦ K876 ♣ AJT2 ♠ KQ2
♥ K7 ♦ AJT85 ♣ KJ8 ♠ KT8
♥ KQJ8 ♦ KQ4 ♣ KT7 ♠ A7
♥ A96 ♦ Q853 ♣ AKT9 ♠ KQ92
♥ KQJ7 ♦ QJ2 ♣ Q2 ♠ A86
♥ 954 ♦ AT95 ♣ AK9 ♠ A74
♥ KQJ ♦ AQ5 ♣ T653 ♠ KT98
♥ KJ5 ♦ KQ98 ♣ A2 ♠ KQ
♥ KQ52 ♦ K97 ♣ QJ75 ♠ AJT2
♥ KQ5 ♦ J985 ♣ KQ ♠ KQJ8
♥ KT8 ♦ KT7 ♣ KQ4 ♠ AJ7
♥ KJ ♦ A976 ♣ A843 ♠ AJ7
♥ A6 ♦ A843 ♣ A976 ♠ QJ94
♥ KJ7 ♦ QJ2 ♣ AQJ ♠ QJ2
♥ Q2 ♦ KQ92 ♣ KQJ7 ♠ Q963
♥ QJ9 ♦ A6 ♣ AQJ9 ♠ A843
♥ A976 ♦ AJ7 ♣ K6 ♠ KQ43
♥ A5 ♦ Q85 ♣ AT32 ♠ 54
♥ AJ3 ♦ AK96 ♣ AJT2 ♠ Q2
♥ QJ2 ♦ KQJ7 ♣ KQ92 ♠ A65
♥ A84 ♦ AT83 ♣ A97 ♠ KT
♥ AQ52 ♦ A43 ♣ QJ85 ♠ AQ5
♥ J3 ♦ KQ974 ♣ KQ9 ♠ K742
♥ 95 ♦ A62 ♣ AKJ4 ♠ AQJ
♥ J97 ♦ QJ62 ♣ KJ5 ♠ Q72
♥ J95 ♦ AT ♣ AKJ76 ♠ Q7
♥ AJ2 ♦ QJ53 ♣ AK53 ♠ A843
♥ A976 ♦ A6 ♣ AJ7 ♠ KQ43
♥ A5 ♦ A85 ♣ AT32 ♠ KQ54
♥ A5 ♦ A876 ♣ A95 ♠ A843
♥ A976 ♦ AJ7 ♣ A6 ♠ AKT8
♥ K3 ♦ K97 ♣ Q642 ♠ KQJ7
♥ KQ92 ♦ Q2 ♣ QJ2 ♠ QJT8
♥ A742 ♦ A5 ♣ A84 ♠ QT8
♥ A4 ♦ AQ876 ♣ K87 ♠ AT83
♥ A97 ♦ A84 ♣ A65 ♠ KQ6
♥ AK73 ♦ T965 ♣ K6 ♠ 97
♥ KQJ7 ♦ AJ32 ♣ KJ3
Gerber
Gerber is a convention bridge players use to ask their Partner how many Aces they hold after the Partner has made a natural bid of NT either at the beginning or the ending of the auction. In these auctions, a jump bid to 4♣ says nothing about the ♣ suit -- it is asking their Partner how many Aces they hold. Bridge players call this 4♣ bid Gerber. This could be bid after an opening bid of NT:| Opener | Responder |
| 1NT | 4♣ |
| Opener | Responder |
| 2NT | 4♣ |
| Opener | Responder |
| 1♦ | 2NT |
| 4♣ |
| Opener | Responder |
| 1♦ | 1♥ | 1NT | 4♣ |
| Opener | Responder |
| 1NT | 2♣ |
| 2♥ | 4♣ |
| Opener | Responder |
| 1NT | 2♥ |
| 2♠ | 4♣ |
| Opener (Dealer) | Overcaller | Responder | Advancer |
| 1♣ | 1NT | Pass | 4♣ |
| Opener (Dealer) | Overcaller | Responder | Advancer |
| 2♥ | 2NT | Pass | 4♣ |
What are the responses to Gerber?
| 4♦ | Partner I have either zero or all four Aces |
| 4♥ | Partner I have one Ace |
| 4♠ | Partner I have two Aces |
| 4NT | Partner I have three Aces |
| Opener | Responder |
| 1NT | 4♣ |
| ??? |
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