Difference between revisions of "User:Brian/Bridge/Rebids after opening one of a major"

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This page is incomplete.
 
This page is incomplete.
  
==Without interference==
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{|class="wikitable"
===Responses by partner showing support===
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|+ Without interference
====Single raise====
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! If... !! then...
A single raise means that partner responded 2 of your major, showing 3+ card support and 6 to 10 points. Be sure to re-evaluate your hand now that a fit has been found.
+
|-
 +
| Partner responded 2M, 3M, 2NT, or 3NT
 +
| These responses all show support for your major. See [[User:Brian/Bridge/Subsequent bidding after major suit agreement|Subsequent bidding after major suit agreement]]
 +
|-
 +
| Partner responded 4M
 +
| Pass. The 4M response is preemptive and shows 5+ card support with very little strength. This is an instance of the "slow shows, fast denies" principle—if partner actually had a game-forcing hand, they would have made a different response in order to leave room for investigating the possibility of slam.
 +
|-
 +
| Partner made a double jump shift
 +
| This is a splinter. Alert the bid, then see [[User:Brian/Bridge/Responding to a splinter|Responding to a splinter]].
 +
|-
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| Partner responded 1♠ to my 1♥
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| See [[User:Brian/Bridge/Opener's rebids following one-over-one|Opener's rebids following 1/1]].
 +
|-
 +
| Partner responded 2 of a lower suit and is an unpassed hand
 +
| See [[User:Brian/Bridge/Opener's rebids following two-over-one|Opener's rebids following 2/1]].
 +
|-
 +
| Partner responded 2 of a lower suit and is a passed hand
 +
| See [[User:Brian/Bridge/Opener's rebids following non-game-forcing two-over-one|Opener's rebids after non-game-forcing 2/1]].
 +
|-
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| Partner bid 1NT
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| This shows 6 to 12 HCP. Announce "semi-forcing", then see the section below on how to show both strength and distribution with rebids.
 +
|-
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| Partner responded 4NT
 +
| This is [[User:Brian/Bridge/Responding to Blackwood|Blackwood]].
 +
|}
  
I have 15- total points → Pass.
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{|class="wikitable"
 
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|+ Responding to semi-forcing 1NT
I have 16 to 18 total points and a weak side suit in which I'm concerned we might lose 3 tricks → Bid the weak suit. This is called a '''help suit game try.'''
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! If... !! then...
 
+
|-
I have 16 to 18 total points and a balanced hand → Bid 2NT.
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| I have a one-suited hand with 16- total points
 
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| Rebid your major.
I have 16 to 18 total points → Bid 3 of your major.
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|-
 
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| I have a one-suited hand with 17+ total points
I have 19+ total points and no slam interest → Sign off in game.
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| Jump-rebid your major.
 
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|-
I have 19+ total points including a small singleton or void in a side suit → Make a jump in the side suit (a splinter), showing slam interest. For example, after 1♥ - 2♥, the rebids of 3♠, 4♣, and 4♦ are splinters. After 1♠ - 2♠, the rebids of 4♣, 4♦, and 4♥ are splinters.
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| I have a lower 4-card suit with 18- total points
 
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| Bid your other suit.
I have 19+ total points and I'm interested in slam → Start with a help-suit game try, possibly artificial, which is one-round forcing. After hearing partner's response, you can decide whether to pass, initiate [[User:Brian/Bridge/Control bidding|control bidding]], or bid 4NT, [[User:Brian/Bridge/Blackwood|Blackwood]].
+
|-
 
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| I have a lower 4-card suit with 19+ total points
====Jump raise====
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| Jump-shift into your other suit (<i>i.e.</i>, bid it at the 3 level).
A jump raise means that partner responded 3 of your major, showing 4+ card support and 10 to 12 points. A 10&ndash;12 point raise is also called a ''limit raise'', therefore in this case the jump raise happens to be a limit raise. Be sure to re-evaluate your hand now that a fit has been found.
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|-
 
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| I have a higher 4-card suit with 17+ total points
I have 13 to 14 total points &rarr; Pass.
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| Bid your other suit. (This is called a '''reverse'''.)
 
+
|-
I have 15+ total points and no slam interest &rarr; Sign off in game.
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| I have a higher 4-card suit with 16- total points
 
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| Don't bid the other suit, <i>i.e.</i>, spades; your partner's 1NT response has already denied 4 spades, and you are not strong enough for a reverse. Instead, keep reading...
I have slam interest (typically 19+ total points) &rarr; Initiate [[User:Brian/Bridge/Control bidding|control bidding]], or bid 4NT, [[User:Brian/Bridge/Blackwood|Blackwood]].
+
|-
 
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| I have a balanced hand with 17-18 HCP
====Double jump raise====
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| Respond 2NT, which is an invitation to 3NT.
A double jump raise (to 4 of the major) is preemptive and shows 5+ card support with very little strength. Therefore, you are expected to pass. This is an instance of the "slow shows, fast denies" principle&mdash;if partner actually had a game-forcing hand, they would have made a different response in order to leave room for investigating the possibility of slam.
+
|-
 
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| I have a balanced hand with 19+ HCP
====Double jump shift (splinter) ====
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| Respond 3NT.
A double jump shift is a splinter raise. Alert the bid, then see [[User:Brian/Bridge/Responding to a splinter|Responding to a splinter]].
+
|-
 
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| I have a balanced hand with minimum opening strength (12 to 14 HCP)
====Jacoby 2NT====
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| Pass. Your partner has 12- HCP, so you most likely don't have a game... so stopping in 1NT isn't the worst thing you can do.
A response of 2NT is a game-forcing raise showing 4+ card support for your major, slam interest, and no splinter. Alert partner's bid.
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|-
 
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| Otherwise (intermediate strength with no lower 4-card suit)
I have a good 5-card side suit &rarr; Bid the side suit at the 4 level. (Exception: if the trump suit is hearts, don't bid 4&spades;, since that's above the 4&hearts; game.)
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| Bid a lower 3-card suit. (Yes, bidding a 3-card suit sucks. Opening 1NT with 5332 and 5422 distributions is a great way to reduce the number of situations where you have to do this. 5431 distributions with 5 hearts and 4 spades remain problematic, but that's the price to pay for playing a 2/1 system.)
* If partner responds 4 of your major, it is a sign-off. If you still have slam interest, make a [[User:Brian/Bridge/Control bidding|control bid]] or bid 4NT, [[User:Brian/Bridge/Blackwood|Blackwood]].
+
* If partner makes any other non-jump bid, it is a [[User:Brian/Bridge/Control bidding|control bid]] or [[User:Brian/Bridge/Responding to Blackwood|Blackwood]].
+
 
+
I have a singleton or void in a side suit &rarr; Bid the short suit at the 3 level. For subsequent bidding, see the previous paragraph.
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+
None of the above are true, and my strength is:
+
* Minimum (12 to 15 total points) &rarr; Rebid 4 of your major.
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* Intermediate (16 to 18 total points) &rarr; Rebid 3NT (artificial and forcing)
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* Maximum (19+ total points) &rarr; Rebid 3 of your major, forcing. (This is an instance of "slow shows, fast denies".)
+
If partner bids anything other than 4M in response, it should be interpreted as a [[User:Brian/Bridge/Control bidding|control bid]] or [[User:Brian/Bridge/Responding to Blackwood|Blackwood]].
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===Semi-forcing 1NT response===
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When partner responds 1NT to your one-level major opening, announce "semi-forcing"; this lets the opponents know that the 1NT bid by partner is possibly artificial, not necessarily showing a balanced hand, and is one-round forcing unless your hand is a minimum.
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+
A 1NT response generally shows 6 to 12 HCP (<i>i.e.</i>, less than game-forcing strength). Rebids should show both strength and distribution.
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I have a one-suited hand with 16- total points &rarr; Rebid your major.
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I have a one-suited hand with 17+ total points &rarr; Jump-rebid your major.
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+
I have a lower 4-card suit with 18- total points &rarr; Bid your other suit.
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I have a lower 4-card suit with 19+ total points &rarr; Jump-shift into your other suit (<i>i.e.</i>, bid it at the 3 level).
+
 
+
I have a higher 4-card suit with 17+ total points &rarr; Bid your other suit. (This is called a '''reverse'''.)
+
 
+
I have a higher 4-card suit with 16- total points &rarr; Don't bid the other suit, <i>i.e.</i>, spades; your partner's 1NT response has already denied 4 spades, and you are not strong enough for a reverse. Instead, keep reading...
+
 
+
I have a balanced hand with 17-18 HCP &rarr; Respond 2NT, which is an invitation to 3NT.
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I have a balanced hand with 19+ HCP &rarr; Respond 3NT.
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I have a balanced hand with minimum opening strength (12 to 14 HCP) &rarr; Pass. Your partner has 12- HCP, so you most likely don't have a game... so stopping in 1NT isn't the worst thing you can do.
+
 
+
Otherwise (intermediate strength with no lower 4-card suit) &rarr; Bid a lower 3-card suit. (Yes, bidding a 3-card suit sucks&mdash;it's the yucky part of the 2/1 system. Hopefully the auction works out in the end.)
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+
===New suit by responder===
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Partner responded 1&spades; &rarr; See [[User:Brian/Bridge/Opener's rebids following one-over-one|Opener's rebids following 1/1]].
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+
Partner responded 2 of a lower suit and did not previously pass &rarr; See [[User:Brian/Bridge/Opener's rebids following two-over-one|Opener's rebids following 2/1]].
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+
Partner responded 2 of a lower suit and is a passed hand &rarr; See [[User:Brian/Bridge/Opener's rebids following non-game-forcing two-over-one|Opener's rebids after non-game-forcing 2/1]].
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+
Partner jump-shifted &rarr; TODO: Strong or weak jump shifts?
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===Other responses===
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A 3NT response by partner shows 3-card support and a balanced hand (4-3-3-3 distribution).
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+
Partner responded 3NT and I have slam interest &rarr; Make a [[User:Brian/Bridge/Control bidding|control bid]].
+
 
+
Partner responded 3NT and I have a balanced hand lacking ruffing values &rarr; Pass. When both hands are balanced, you will probably get the same number of tricks in notrump as in a suit, therefore 3NT is more likely to make than 4 of a suit. This is especially true when you have only third-round control in a side suit&mdash;opponents may have 2- of the suit and be able to get in a ruff in a suit contract. Even if both 3NT and 4M make, notrump is worth 10 extra points for the same number of tricks.
+
 
+
Partner responded 3NT and I have an unbalanced hand &rarr; Sign off in 4 of your major.
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+
Partner responded 4NT &rarr; This is [[User:Brian/Bridge/Responding to Blackwood|Blackwood]].
+
 
+
Partner made a triple jump shift &rarr; TODO: Learn Exclusion Keycard Blackwood
+

Latest revision as of 21:35, 25 June 2017

This page is incomplete.

Without interference
If... then...
Partner responded 2M, 3M, 2NT, or 3NT These responses all show support for your major. See Subsequent bidding after major suit agreement
Partner responded 4M Pass. The 4M response is preemptive and shows 5+ card support with very little strength. This is an instance of the "slow shows, fast denies" principle—if partner actually had a game-forcing hand, they would have made a different response in order to leave room for investigating the possibility of slam.
Partner made a double jump shift This is a splinter. Alert the bid, then see Responding to a splinter.
Partner responded 1♠ to my 1♥ See Opener's rebids following 1/1.
Partner responded 2 of a lower suit and is an unpassed hand See Opener's rebids following 2/1.
Partner responded 2 of a lower suit and is a passed hand See Opener's rebids after non-game-forcing 2/1.
Partner bid 1NT This shows 6 to 12 HCP. Announce "semi-forcing", then see the section below on how to show both strength and distribution with rebids.
Partner responded 4NT This is Blackwood.
Responding to semi-forcing 1NT
If... then...
I have a one-suited hand with 16- total points Rebid your major.
I have a one-suited hand with 17+ total points Jump-rebid your major.
I have a lower 4-card suit with 18- total points Bid your other suit.
I have a lower 4-card suit with 19+ total points Jump-shift into your other suit (i.e., bid it at the 3 level).
I have a higher 4-card suit with 17+ total points Bid your other suit. (This is called a reverse.)
I have a higher 4-card suit with 16- total points Don't bid the other suit, i.e., spades; your partner's 1NT response has already denied 4 spades, and you are not strong enough for a reverse. Instead, keep reading...
I have a balanced hand with 17-18 HCP Respond 2NT, which is an invitation to 3NT.
I have a balanced hand with 19+ HCP Respond 3NT.
I have a balanced hand with minimum opening strength (12 to 14 HCP) Pass. Your partner has 12- HCP, so you most likely don't have a game... so stopping in 1NT isn't the worst thing you can do.
Otherwise (intermediate strength with no lower 4-card suit) Bid a lower 3-card suit. (Yes, bidding a 3-card suit sucks. Opening 1NT with 5332 and 5422 distributions is a great way to reduce the number of situations where you have to do this. 5431 distributions with 5 hearts and 4 spades remain problematic, but that's the price to pay for playing a 2/1 system.)