| Opener | Responder |
| 1♣ | 1♦ |
| 2♥ | This is a JUMP SHIFT. Opener has JUMPed in the bidding and SHIFTed suits |
| Opener | Responder |
| 1♣ | 1♦ |
| 2♠ | This is a JUMP SHIFT. Opener has JUMPed in the bidding and SHIFTed suits |
| Opener | Responder |
| 1♣ | 1♥ |
| 2♠ | This is a JUMP SHIFT. Opener has JUMPed in the bidding and SHIFTed suits |
| Opener | Responder |
| 1♦ | 1♥ |
| 2♠ | This is a JUMP SHIFT. Opener has JUMPed in the bidding and SHIFTed suits |
| Opener | Responder |
| 1♥ | 1♠ |
| 3♣ | This is a JUMP SHIFT. Opener has JUMPed in the bidding and SHIFTed suits |
| Opener | Responder |
| 1♥ | 1♠ |
| 3♠ | This is NOT a jump shift. Opener has jumped in the bidding but did NOT shift suits |
| Opener | Responder |
| 1♥ | 1NT |
| 3♦ | This is a JUMP SHIFT. Opener has JUMPed in the bidding and SHIFTed suits |
| Opener | Responder |
| 1♥ | 1♠ |
| 3♥ | This is NOT a jump shift. Opener has jumped in the bidding but did NOT shift suits |
| Opener | Responder |
| 1♣ | 1♦ |
| 1♠ | This is NOT a JUMP SHIFT. Opener has not jumped in the bidding |
| Opener | Responder |
| 1♦ | 1♠ |
| 3♥ | This is NOT a jump shift. Responder could have bid ♥ but chose not to. Responder bypassed the ♥ suit. 2♥ by Opener would now be a strong bid called a reverse. 3♥ is a bid for players who are much more experienced than you are. |
Question: Why do we need to make a jump shift?
Answer: Basically so your Partner won't say Pass before a game is reached. Say you hold this hand:
♠AQT95
♥A
♦AK
♣K9865
A nice hand. You hold 20 HCP. You can't open the bidding 2NT to show 20 or 21 HCP because your hand is not balanced. So you open the bidding 1♠. Partner responds 1NT. This shows a weak hand with about 6 to 10 HCP and fewer than three ♠. But once Partner responds you know you have enough for a game. Partner has at least 6 HCP and you have 20 HCP. You want to make sure the Partnership gets to a game contract but you are not sure where that should be. Partner could have any of these hands:
| Hand A | Hand B | Hand C |
| ♠3 ♥9863 ♦9842 ♣AQT4 |
♠83 ♥KQ8 ♦Q864 ♣T432 |
♠83 ♥83 ♦Q986542 ♣A4 |
| With this hand you have a good chance to take ALL the tricks if ♣ are trump. If you rebid 3NT Partner will Pass. You want to show your ♣ suit but if you rebid just 2♣ Partner will most likely Pass. | With this hand the best contract is 3NT. Hard to know that. | With this hand if ♦ are trump you have a good chance at taking all the tricks. If you raise Partner to 3NT you won't get there because Partner will just Pass. |
How do we bid these hands?
Hand A if Opener rebids 3♣ Partner just might raise to 4♣ since their red card holding is not good. Then Opener should get the partnership to at least 6♣ since there are no matchpoints for 5♣.
Hand B if Opener rebids 3♣ Partner will just rebid 3NT since their black suit card holding is not good. Then Opener can just Pass.
Hand C if Opener rebids 3♣ Partner might just bid 3♦ to show a weak hand with ♦. Then Opener might get the partnership to 6♦ since their ♥ holding is weak and their are no matchpoints for 5♦.
The key here is to rebid 3♣ so that Partner now knows the partnership is going to game. That way they can show their support if they have it, a new suit if they have it or just return to NT if they are not interested.
Let's practice!
On all the following hands you will open the bidding 1♠. Partner will respond 1NT. What is your bid and what does that tell Partner?
Hand 1
♠AT986
♥J
♦A2
♣AT943
Hand 2
♠AKQJ4
♥KJ
♦T
♣AQJ83
Hand 3
♠KQJ87
♥75
♦A
♣AKQJ2
Hand 4
♠AK943
♥T
♦Q2
♣AT985
Hand 5
♠QJ654
♥Q9
♦4
♣AKQJT
Hand 6
♠98743
♥A6
♦A
♣AK653
Hand 7
♠AK987
♥J
♦T7
♣AJ852
Hand 8
♠AKJ97
♥6
♦J3
♣AKQJ7
Hand 9
♠J8643
♥4
♦A2
♣AKQ65
Hand 10
♠AQJ54
♥T96
♦
♣AK976
Hand 11
♠AKQJ9
♥
♦Q42
♣AK986
Hand 12
♠AJ753
♥QJ6
♦
♣AK974
Hand 13
♠AKQ65
♥AK
♦4
♣QJ983
Hand 14
♠AKQJ6
♥7
♦K6
♣KQJ76
Hand 15
♠AKQJT
♥J
♦AQ
♣QJT64
Hand 16
♠QT742
♥5
♦K5
♣AKQ85
Hand 17
♠T8742
♥A9
♦2
♣AKQ53
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