Specifically, it occurs when opener is unbalanced with 16+ points (some players require 17+ points) and hears a one-over-one response from partner. Please get in touch i. -. So:Walsh convention. Hand 1: A AKJ6 KJ873 J94. Just go. However, he was in no hurry because opener had to take another bid. " The purpose of the law is to decide whether to play or defend and the level to play, when both sides are bidding, i. This is an oxymoron. com – Dalam permainan bridge, reverse bid adalah salah satu tipe bid dari opener yang menunjukan pegangan kuat. Opener has made a 2 level reverse bid and responder has a weak hand. LTC employs the following math: Count the number of "winners" and "losers" in each of your suits: Each ace and king counts as a winner. Yes, you heard me. Suppose responder has greater strength. 0:00 / 7:02 What is a reverse in bridge? The name is confusing and it can be more helpful to think in terms of 'breaking your barrier' when you are rebidding strong, unb. A reverse, in the card game contract bridge, is a bidding sequence designed to show additional strength without the need to make a jump bid; specifically two suits are bid in the reverse order to that expected by the basic bidding system. Standard Bidding – More Bidding After a Reverse After a reverse in a 3-suited auction, 1X-1Y-2Z, Responder’s weakest action is to bid 3X. Reverse definition: opposite or contrary in position, direction, order, or character. And no matter what methods you play, it is essential, for anyone aspiring to learn to be a good player, to learn the importance of bidding shape properly. This hand has only 8 HCP and may not be worth much on defense, butJump raise or jump rebid of opener’s suit; Reverse in a new suit, i. The 'barrier' is in the same suit as the. A reverse is a simple bid in a higher ranking suit at the two level. The 2 response is forcing one round, and responder passes when opener shows a minimum opening with 6+ spades. As with all NT game tries, bidders should exclude shortness points when determining a hand’s strength. - MikeH. Partner can return to your first suit but must now go to the 3 level. Respond 2 . 4+ Spades, 16+ distributional points, singleton or void in Hearts, inviting game; note Mini-Splinter suit is always responder's suit (2H would be a Reverse) Definition of Opener's Strong Jump Shift: Opener's jump bid is in a rank higher than both responder's suit as well as opener's initial suit rank. of the “Bridge Bulletin” is used with a balanced hand (no shortness). Partner can rebid his second suit to show extra length. If the opener actually bids at the three-level he said to be making a high-level reverse. Specifically, it occurs when opener is unbalanced with 16+ points (some players require 17+ points) and hears a one-over-one response from partner. Even if you do not adopt this approach, you should recognize the bidding problem it is designed to solve so you can try to deal with it in other ways! DOWNLOAD THIS LESSON: WORD PDF. 1H - 1S; 3C. The Rule of…. If responder can bid at all after 1 spade, then you are good to bid to the four level (assume, pessimistically, 10 losers from partner; 24 - 10 - 4 = 10 tricks). There are two bids responder cannot make after a one–level response with a good hand (8 or more points): either of the weakness signals from the previous section. Responses to 1. 1 – (1 ) – dbl – (pass) – responder is known to have only a 4-card heart suit. If you hold 4 clubs and 5 diamonds: Open 1D and plan to rebid 2C to give partner a choice of your two suits. With two suits 4-4, bid the lower ranking first (except over 1♣, with diamonds and a major,bid the major). This is a sign-off bid in one of opener’s suits. New-suit bids by opener do not force responder to bid again unless opener's rebid is: A jump-shift (1D - 1H / 2S or 3C) or A reverse rebid, where his second suit is higher in rank than his first suit (1C - 1S / 2D or 2H) Other new-suit bids by opener -- 1D-1H / 1S or 1D-1H / 2C, for example -- show less-than-forcing values. Inverted minors were originally part of the Kaplan-Sheinwold bidding system that employed 5-card majors and a 12-14 1NT. When Opener rebids a second suit at the 2-level without reversing, Responder must decide if they should keep the auction low, invite game, or find a forcing bid to continue the auction. Basic bridge bidding is based on a practice called "up-the-line", which means that after you open, partner's one-level responses and your rebids are always made in the cheapest of your 4-card suits. It generally should not be used with 4441 or 4414 hands. After an opponent’s take-out double, it’s more common to treat responder’s new suit on the 2 level as a non-forcing bid showing 6-9 points and a good 6-card suit, or a very good 5-card suit. On the first auction, you reverse on strong hands of the appropriate shape because you kind of have to. However, reverse Benji can be easily incorporated into KS without greatly changing the one-level openings and their continuations. Normally, it shows 6 to 12 HCP. Of course, opener can rebid game or make another strong action to show opening values. If Responder has a game-forcing hand, they can bid 4th Suit Game Forcing. LHO overcalls, partner shows a 1-level response (by bidding or doubling) and opener makes a 2-level reverse. by opener with 19+ points: 2H. –The opener’s second bid is not a jump bid. After opening 1 in third or fourth seat and getting a 2 Drury response, opener can rebid as follows: Opener’s Rebid Meaning 2 A normal opening bid (12+ points) 2 A sub-minimum. The opening lead could be more challenging for the defenders. Opener could have up. Double. In this instance, however, you can only bid 2 ♥ if the agreement allows for 5-5 weak hands. That’s a lot of information to be conveyed in one bid, and it needs to be since a splinter takes up a great deal of bidding space. " That's nice, but don't be proud. 3. Just like there are requirements to make an opening bid and requirements to make an overcall bid, there are particular requirements to make a reverse bid. With the introduction of the Acol Bidding System, bridge players have been trying to modify it. ?A: Of course you can reverse opposite a passed hand! Just because your partner passed, doesn’t mean you can’t have been dealt a big hand – enough to reverse. Usually attributed to Michael Cappelletti and his longtime partner Edwin Lewis, origin of the. The first is, I'd rather not play in "your" suit (clubs) nor the opponent's suit (diamonds). What a Reverse Shows. Thus, the 2/1 system requires a bidding mechanism to describe responder hands that have “in-between” values: those holdings in the 10-12 point range. With hearts and a minor it is usually better to just bid the hearts, because a spade response could require you to bid at the five level: North EastThere is confusion about the different meanings assigned to notrump bids in various auctions, especially 2NT. Specifically, responder cannot bid 2NT or rebid his suit. These 2 auctions cause confusion among inexperienced players. Top Popular Conventions. An extreme example would be something like ♠A‑4‑3‑2 ♥ K‑4‑3‑2 ♦ 3‑2 ♣A‑3‑2. After Opener's Reverse: As to the follow-ups, after, say 1 -1 -2, I recommend: 2 = 5+ spades, 1-round force. The 4♣ and 4!D bids were swapped from the original Baze convention. • Plan your 2nd bid before you make your 1st bid. If you hold a good 5-5, your choices are open the higher suit and rebid the lower without jumping, or open the higher and jump in the lower. As compared to the old Drury method, which used 2♦ to deny an opening bid, it also has a slightly preemptive value thus making it harder for the opponents to enter the bidding even though they know that theLebensohl - A comprehensive arsenal of bids designed to handle several difficult auctions, including: 1. Although intended to be used with a weak no-trump, inverted minors are compatible with any 1NT range. Even with extras, don't ever open 1, intending to reverse into diamonds. Occasionally, I hear (newer) students proudly state: "I don't play reverses. Fourth suit forcing (also referred to as fourth suit artificial; abbreviated as FSF or 4SF) is a contract bridge convention that allows responder to create, at his second turn to bid, a forcing auction. Also see: Better Bidding With Bergen: Volume 1 - Uncontested Auctions (pg 38) Note: Most play that Bergen Raises are "off" after a passed hand, opening in third or fourth seat (see. The trouble with reversing with a minimum hand is that it may leave responder poorly placed. An "ambiguous splinter" raise. Cue-bids after relay promise a stopper. Acol is a natural system of bidding, meaning that your bidding is normally a declaration of your holding and. A 2♠ rebid would constitute a reverse and show a strong opening hand, certainly stronger than this. 1 2 3 responder bid). While responder's 2 Club bid still shows 10-11 points, opener's rebids are reversed from traditional Drury; using Reverse Drury, rebidding 2 of opener's major suit shows a weak hand (fast denies, slow shows). There are two bids responder cannot make after a one–level response with a good hand (8 or more points): either of the weakness signals from the previous section. After partner opens 1 / in third or fourth seat, responder's bids are as follows. See Mr Bridge’s website under Library. After a Third or Fourth Seat opening of a Major suit, the responder, who is a passed hand, shows a strong raise with at least 3-card support, and 10-12 point range, by bidding 2. Reverse Bids In bridge, a reverse is a type of bid by opener that shows extra strength. Most experts, to my knowldege, do not permit an out below game. REVERSE BIDDING (The word ‘reverse’ can be very misleading. Meaning. 5422 hand (semi-balanced 2-suiter) is one that can be treated as balanced or as a 2-suiter, based on the location of our honors. Opener's jumpshift would be: 1-1-2 of a Major 1-1-2 1-1-2 1-1-3 1-1-3 of a minorPresentation is reverse-chronological. The partner of a player who makes an overcall or a takeout double. Bergen raises are artificial jump bids to the 3 level and are used to indicate support of at least four cards in the opener’s trump suit. Thus responder has to bid at the three level to support. There are three types of. A normal opening bid (12+ points) 2. 1♣-1NT This bidding does not show a reverse hand type. The partnership will be playing in an eight-card fit. 4. Since many partnerships open light in third or fourth seat,. Reverse Drury. No. • 1D-1H-1S. In keeping with the principle of fast arrival, it reverses the meanings of opener's 2 and 2 / rebids. Improve your contract bridge play: a variety of bridge hands involving Acol bidding, declarer play and defence. Very simply, a reverse is a rebid by opener or responder in a new suit which is higher ranking than the first suit they bid. ). AK1054 KQ9862 A4 Void --You can also use a reverse bid when your suits are longer than 5-4. Here, you open 1H, partner responds 1NT, and you make a reverse bid of 2S to force. Tradition refers to the. This entails a 2 Drury bid which promises exactly (only) 3-card support. 2 1D-(1H)-P-(2H); 2S is not a reverse, but it is distributional and has great playing strength (partner couldn’t show spades over the 1H bid so is either weak or doesn’t have 4 spades). 5-10 HCP less than 13 total points. Responder’s next bid will show whether game is possible or not. The reason you don't repeat 5 cd majors in other situations is that partner. With a minimum opener, don’t bid two of a suit partner has bypassed with his first response. The strength promised by a reverse varies based on. After opening 1 in third or fourth seat and getting a 2 Drury response, opener can rebid as follows: Opener's Rebid. What is a Reverse •In bridge, a reverse is a type of bid by opener that shows extra strength. J. With 4+ card support, the Drury bid is an artificial 2. Opener can and should bid more than 3 when he is too good to. Reverse Bids In bridge, a reverse is a type of bid by opener that shows extra strength. A bridge loan — in some cases referred to as a hard money loan — is a short-term loan designed to provide financing during a transitionary period, such as moving from one house to another. One of the most popular systems in America right now includes both 2/1 GF and Bergen raises -- and this leaves an enormous, unsolvable gap in your system. Bidding: IDAK or IDAC - A defensive bidding system against strong artificial club sequences. 2NT in competitive bidding situations. A bridge talk from Muswell Hill Bridge. 3 =11-12 in support (limit raise) and 4-card support. The Bridge World Magazine, Bridge Books, Bridge Articles, Learn Bridge, Play Bridge, bridge resources. Unlike Standard American, this bid is not limited to 6 to 10 HCP. : If your hand is 2-2-5-4 with a stopper in the unbid suit, consider a notrump rebid. It's an important bid, because the 2-level new suit 1st response showing 10+ is not enough for opener to bid game if. However, when the dummy has features such as a long side suit worthy of promotion, the declarer may find a better strategy is to rethink the play of the hand from the dummy's perspective. . Landy is a convention for use after the opponents have opened 1NT. suit with 4+ cards. Read hundreds of bridge bidding conventions used in contract bridge. See Mr Bridge’s website under Library. Opener has made a 2 level reverse bid and responder has a weak hand. This is where you might have heard the term "Mirror Double" -- or "Stolen Bid. Definition. 1. Given that South may only have 6 points North should have 18 or more points. "Skid" Simon. Lebensohl 2NT (2NT as a relay) is a useful agreement in these situations. We shall adopt the traditional approach. Responder bids 1 . Just IGNORE it. •Opener’s second bid is in a suit responder bypassed —hearts. The next step in the bidding is opener s second bid or, as it is commonly known, opener s rebid. If partner bids 1H, bid 1S. American Contract Bridge League See: ACBL American Whist Movement. Rather than memorize the bidding sequences in this article, just know the definitions. Meaning they could have bid at a lower level in the same suit, but they didn’t. , 2NT -3; 3-4; 4-5 shows diamond shortness. See more. 3-of-the-major (raise)=0-5 and 4-card support. This method, also called Blackout Over Reverse Bids, is employed by the partnership when a one-over-one response by the partnership is followed by a reverse bid by the opener on the two level. Responses are alertable unless natural. REVERSE BIDDING REVERSE BIDDING (The word ‘reverse’ can be very misleading. Defence is the most challenging part of bridge, even for experienced players. What is a reverse and what does it show. B) Opener's rebid is at a HIGHER level than responder's response ( but never a jump !) REVERSE BIDDING REVERSE BIDDING (The word ‘reverse’ can be very misleading. Let's begin with the rules of bidding in Contract Bridge: Number of players: Four, playing as two pairs, with partners facing each other. Why is it a good thing to use Benji? All of us already play pre-emptive bids at the three level - weak – 6 – 9 points. S. Partner's reverse is usually around 16-17 points (but could well be a lot more), and if we have a good holding in the unbid suit then we bid NT. The four types of auction are: 1. Two-Over-One GF (and "forcing" 1NT) – (continued) An important feature of the 2/1 GF system is to employ a 1NT bid (by an unpassed hand) in response to a major-suit opening bid as forcing (or semi-forcing) for one round. Similarly, 4 would show spade shortness. and played by bridge players for many years. Technically, this is called "Reverse-Drury" since it is opposite of how it was first invented. For example, if you open 1C and partner has two 4-card majors, he'll always bid 1H to keep the bidding low and give. Benjaminised Acol (Benji-Acol), devised by Albert Benjamin from Scotland, is Acol with a revised system of two-level openings to allow an Acol player the opportunity to use two- bids in the majors as weak. With Hand A, of course, you plan to pass partner's Three Club response. You should accept the relay and bid 3C if you have minimum values (16-18 pts. OPENING BIDS OF 2 , 2 or 2 Raises are pre(“Weak Twos”): Needs six card suit with good suit quality and a hand with Should have no outside four card major. With a 6-card minor and a 5-card major you have a tough decision. " All other actions are as if they passed. 2S. (Later on, you will learn that this type of bid is termed a ‘reverse’). -1 -2~), that is called a reverse. Bid game in partner’s major2NT and 3NT responses. You should have responded 1♠ to indicate 4+ spades. Bid 2 of your longer minor with all other hands – not forcing. There is no substitute or shortcut for these 2 "special" rules. Any reverse absolutely, without any room for exception whatsoever, promises more length in the first suit than the second. Show major suit stoppers bid 2♥ or 2♠ up the line. Best to open 1NT and describe the essential features of the hand. Otherwise jump bid in a new suit or bid game in own suit or 3NT. Unlike duplicate bridge, the scoring is cumulative. Opener s hand has the strength to jump to 3 , but the suit is less than substantial. Any bid at the three level shows a good 8 points or more and is forcing to game. Without a major fit, responder bids 3NT. /1♠: - 6+ points with at least four cards in the new suit. g. The bids of 3♥/3♠ by responder show a fit in the major and are now invitational with 10-13 points and 2-level bids are. Previously, we examined the basic concepts of 2/1 Game Forcing. Partner’s first obligation is to raise hearts with three-card support. With five cards in a minor and four cards in a major plus opening bid strength, respond in the minor and then bid the major. This informative bid should help your partnership to reach the best contract. you must go to the 2-level to bid your second suit. If the total is 15, open the bidding. Basically, a "reverse" is when opener's rebid (2nd bid of the auction) meets both A & B: A) Opener's rebid is in a HIGHER ranking suit than his first suit. You are at: Home > H > High Reverse: Bridge Bidding. REVERSE BIDS OPENER'S REVERSE BIDS The standard definition of an opener's reverse bid is a bid in a third suit in an uncontested auction which prevents responder from returning to the first suit at the two-level. Firstly the frequency of hands is much greater than the traditional Acol strong 2 bid. We are concerned only with auctions where responder bid on the one-level. If South prefers diamonds then they need to bid at the three level. The Reverse of what's normal. Opposite three aces, bid 7. Lesson 5. Ingberman Convention. Any reverse absolutely, without any room for exception whatsoever,. ). Specifically, it occurs when opener is unbalanced with 16+ points (some players require 17+ points) and. Responder's Reverse Bids are an inferentially a Forcing bid. After you understand the rules for Contract Bridge, you can learn some of the variations like Auction Bridge, Honeymoon Bridge, Reverse Bridge, and Three-Handed Bridge. After Partner reverses, 2NT on Responder’s next bid, shows weakness and is a relay bid to 3C. 18 or more points: Raise to 3NT if your hand is semi-balanced and you have 19+ points (or a very strong 18 points). We have created a standard convention card for GIB. An example auction: ♠K ♥AK52 ♦T92 ♣AK643 You Partner 1♣ 1♠ 2♥ Forcing? Yes, a reverse is forcing. Rebids by responder With game forcing values, the responder may also bid stoppers to try to get to NT after aPrinter friendly version. The art of bridge bidding. If Responder wants to choose Opener's first suit, she has to bid on the three level. If you have 12 or more HCP, open the bidding. - Fluffy. 1M 3c = 9-12. Larry Cohen - Mar 2015 Level: Intermediate to Advanced. It shows more cards in the first bid suit than in the second suit and is forcing for one round. An opening bid of 2 NT indicates a balanced hand with 20-21 HCP in Standard American or 20-22 HCP. Listen to my tips on playing reverses in bridgeWhen partner responds at the one level, a reverse is forcing for one round. ”. A Reverse is forcing for one round. A 7 4 K J 10 7 3 2 8 6 5 3 Bid 2 showing a one suiter. If Responder rebids their own suit at the 2-level, it is forcing for 1-round and shows a good 5-card suit or a 6-card suit. 0. -- you can refuse the relay and bid past 3C. A non-jump rebid in a new suit that takes the bidding above the level of two of your original suit, usually in a higher-ranking suit. This is called a reverse rebid, and it promises more strength (at least a good 16 points, similar to the next hand). Penalty with roughly 15+ points. The ‘reverse’ is just one of several strong opener’s re-bids. Opponent makes an opening preemptive weak 2 bid. 3H. It truly is one of those 50/50 things depending on your locale and/or your partner's skill level. by Thorvald Aagaard Aug. . Learn to play. Over the opponent's 1-of-a-minor opening, I would bid 2-of their-minor with this hand (planning to accept whatever decision partner makes). Opener's reverse rebid: Declarer Play: Simple Odds Opener's second bid: Game-try bids: Quick tips to improve your game Responder's second bid:. AK1054KQ9862A4Void -- You can also use a reverse bid when your suits are longer than 5-4. Opener w/out 4 hearts but with 4 spades will bid 1S. However, the modern style is for Reverse Drury - An extension to Drury. Since a reverse forces responder to bid at the 3-level with a preference for the first suit, such a bid promises significant extra strength. Overcaller's available conventional calls are as follows. Potential is 13 tricks and you know the partnership has all the aces and the K-Q of trumps. Specifically, it occurs when opener is unbalanced with 16+ points (some players require 17+ points) and hears a one-over-one response from partner. In the last lesson you were taught how to respond to an opening bid of one of a suit. A one-suited hand (any suit, normally 6+ cards) with roughly 11-14 points. Opener, with. Either left-hand opponent or partner may bid, giving us a later opportunity to show some values. . Drury is a very valuable convention that comes up frequently, is easy to remember and can dramatically improve your bidding accuracy. to 1 NT. An unbalanced, game-forcing raise promising 12+ points and 4-card trump support, with an undisclosed singleton or void. You don’t promise clubs to bid 2 — it is an artificial bid. for a jump to three in your suit, consider a jump shift (or reverse) in a good three-card suit. North East South WestThis video is about Reverses. A response of 2 NT shows 10 to 12 HCP (11-12 if a jump) with a stopper in the enemy suit. Opener’s next bid should help us decide where we belong. First bid another suit or 1NT forcing then jump to 3 or 3. This is invitational but nonforcing. various responses to a reverse bid of opener. Newer players have trouble with bidding (which the collection of articles on the website hopefully addresses), and maybe some difficulty in playing the hand, but those two aspects of the game are relatively easy to learn, especially with a bit of study and practice. •It shows a moderately strong opening hand (17 to 19+ points) and an unbalanced hand. It has four losers. The 'barrier' is in the same suit as the opening bid, but one higher. Wrong! This led to a penalty (minus 500 which should have been 800) whereas the safer double would fetch a 1 bid. for a jump to three in your suit, consider a jump shift (or reverse) in a good three-card suit. Hand e is weak and distributional. Responder bids 1 . When partner responds at the two level, a reverse is forcing to game. Note: A reverse is not the. 3. READ THE NEWSLETTER. Bridge Glossary. • Called a “reverse” because it is “normal” to bid the higher ranking suit first. With the final bid being a matter of judgment by opener. This entails a 2 Drury bid which promises exactly (only) 3-card support. This promises some values since advancer could simply pass instead. With. This may also be referred to as carding. The 'barrier' is in the same suit as the opening bid, but one higher. If such a. Reverses use up a lot of bidding space. 5. (You may also use the jump-reverse if an opponent's overcall has forced you to the 2-level, whether or not partner has responded. Responding To Opening Bid Of 1♣ or 1. With balanced hands, the opening is 1NT or 2NT, or the rebid is 1NT or 2NT. What to do as a responder when you can't bid your second suit at the 2 level because it's higher ranking than your first suit. But, the reverse is not forcing to game. As such, are performing get one-way or two-way reverse flannery you’ll have to bid items natural. Still, we should stretch to make a natural bid in a competitive. We are going to focus on opener’s reverse for now. Respond 4 (or 4 , or 2NT). 0+ 15+Make a reverse rebid of to 2S (if you opened 1H and hold a 4-card spade suit) – forcing. Billy Miller wrote an article in the Bridge Bulletin about Modified Baze (Dec 2010). In keeping with the principle of fast arrival, it reverses the meanings of opener's 2 and 2 / rebids. What is a reverse in duplicate bridge? In bridge, a reverse is a type. Ana Roth. המקרה השכיח הוא הכרזת פתיחה. A high-reverse bid is made by making a three-level bid in a lower suit than the original bid, after partner or. The major drawback of Bergen raises is that they are pretty much incompatible with 2/1 GF. S. Here is how opener would respond: • 2♥/2♠ shows a hand that is not interested in playing game opposite a limit raise. Let’s look at more examples. When partner responds at the two level, a reverse is forcing to game. Any player can reverse, though the. Reverse Bids Key point: If partner could have as few as 6 points, you must have at least 17 points to force partner to bid at the 3 level (or 2NT). You need 23 combined points to be safe in 3 of a suit or 2NT. and you only require ten tricks. Jump shifts can be made by either the opener or the responder but the points required are different for each position. The purpose of the Inverted Minors convention is to investigate the possibility of making a 3-NT game. Sequence B is a reverse re-bid. Reverse definition, opposite or contrary in position, direction, order, or character: an impression reverse to what was intended; in reverse sequence. If Opener also has 4 cards in that Major, you have found your 8+ Fit. 1M 3d = 7-8. With strictly longer hearts than spades, you reverse. The concept of the Ingberman convention deals with bidding situations, in which the partner reverses and the. 2. I have presented the fundamental aspects of the bidding structure in this book. This shows responder that he, opener, has more Diamonds than Hearts and more. It generally shows 17+ HCP with 5+ cards in the first suit and 4+ cards in the second suit. Since you denied 4 spades, opener's rebid 2♠ is unusual and hence a reverse. Bid 4NT. Revoke Failure to play a card of a suit led when it was possible to do so. A reverse is a rebid in a suit which is higher ranking than the original bid at a higher level without jumping. It is forcing for one round when the response was at the one-level. So "go back" and think in terms of my bidding one spade (or one heart). After the 1 responding bid the 2 rebid is not a jump and not a new suit. Any player can reverse, though the term most commonly applies to a reverse by opener. Opener Responder 1♣ 1♠ 2 the last bid is a. - 2♣: - 9+ points with probably five. Michael Cappelletti, born in the year 1942, of. A high-reverse bid is made by making a three-level bid in a lower suit than the original bid, after partner or opponent's two-level response. In general, the GIB robots on BBO use the 2/1 system described below. Normally the weak-two refers to a major, but it is becoming common to include a weak diamond suit. Thus responder has to bid at the three level to support opener’s first bid suit. Specifically, it occurs when opener is unbalanced with 16+ points (some players require 17+ points) and hears a one-over-one response from partner. A reverse promises at least 17 points, and more cards in the rst suit than the second.