ETM One Notrump Structure

Version 2.1 (c) 2001, 2008 Glen Ashton BridgeMatters

 

Regular ETM 1NT structure

 

2C:          Stayman, might not have a four card major.  2C can be bid with weak hand and both majors.

2D,2H:    Jacoby Transfers showing five or longer in next major suit.

2S:           Transfer to clubs.

2NT:       Transfer to diamonds.  Can have a weak hand with both minors.

3C:          5-4 or better in the minors and game forcing.

3D:          Asks for a five card major.  Use this first if wanting to ask for aces (Gerber).

3H:          4-1-4-4 or 4-0-5-4 or 4-0-4-5, game forcing.

3S:           1-4-4-4 or 0-4-5-4 or 0-4-4-5 game forcing.

Game:     These game bids to play: 3NT, 4H, 4S, 5C, 5D.

4C:          Transfer to 4H.

4D:          Transfer to 4S.

4NT:       Quantitative, non-forcing but slam invitational.

 

Details

 

[1NT-2C Stayman]

2D:          No four card major.  After this:

2H:          Both majors, up to GI with at least 5Hs and 4+Ss.  Responder passes with a minimum & 3Hs, bids 3Ss with three spades, and bids 2NT with a maximum, 3Hs & only 2Ss.

2S:           Five spades, GI values, distributional or 4Hs (otherwise 1NT-2H-2S-2NT).

2NT:       GI, may or may not have a four card major.

3m:          Natural & forcing.

3M:         Four in this major, five or longer in OM.  Game forcing.

3NT:       To play.

4C:          Gerber.

4D:          Delayed Texas transfer to 4H.

4H:          Delayed Texas transfer to 4S.

4NT:       Quantitative, non-forcing but slam invitational.

 

2H:          Four hearts, may have four spades if not minimum.  After this:

                2S:           Five spades, GI values.

                2NT:       GI, may have four spades.

                3m:          Natural & forcing.

                3H:          GI.

                3S,4C;4D:               Singleton or void, heart support, slam try.

                3NT, 4H:                To play.

                4NT:       RKCB for hearts.

 

2S:           Four spades, may have four hearts if not minimum.  After this:

                2NT: GI, may have four hearts.

                3m:          Natural & forcing.

                3H:          Slam try in Ss.

                3S:           GI

                3NT, 4S: To play.

                4C, 4D, 4H:            Singleton or void, spade support, slam try.

                4NT:       RKCB for spades.

 

2NT:       Both majors, minimum.  After this, all suit bids at the three level are transfers (3S shows clubs), 4C is Gerber, and 4M is to play.

 

[1NT-2D & 1NT-2H Jacoby transfers]

Standard Jacoby transfers.  Use 2D followed by 2S to show 5-5 in the majors, GI or game going.  Use 2H followed by 3H to show 5-5 in the majors, slam try.

 

[1NT-2S transfer to Clubs]

Opener is to bid 2NT with a bad hand for clubs, 3C with a good hand for clubs.  Now 3C is a signoff bid, 3NT is to play, and new suit bids show location of values & some length (3 or longer in suit).

 

[1NT-2NT transfer to Diamonds, can be weak with both minors]

Opener is to bid 3C with a bad hand for diamonds, 3D with a good hand for diamonds.  Now 3D is a signoff bid, 3NT is to play, and new suit bids show location of values & some length (3 or longer in suit).

 

[1NT-3C both minors, at least 5-4, game forcing]

Opener bids 3D to ask, 3M with weakness in OM, and 3NT with values in the majors, not interested in the minors unless responder has a slam try.  After 3D, responder rebids:

3H:          singleton or void in Hs.  3S asks: 3NT shows 3-1-5-4 or 3-1-4-5, 4C shows 5-5 in minors.

3S:           5-5 in minors, singleton or void in spades.

3NT:       1-3-5-4 or 1-3-4-5.

4C:          6Cs, 5Ds, singletons in both majors.

4D:          6Ds, 5Ds, singletons in both majors.

4M:         void in M, singleton in OM, 6-6 or 7-5 in the minors.

 

[1NT-3D asking five card major]

Opener rebids 3M with five, 3NT without five.  Now 4C is always Gerber (asking for aces , 4D showing none), and over 3M 4D is RKCB for the major suit.

 

[1NT-3M singleton/void in major, 4 in the OM, game forcing]

3NT is to play, 4OM or 4m shows that opener thinks best spot is that suit with four of the minor , 3S/3H or 4S/3S shows slam interest in OM.

 

[1NT-4C Transfer to Hearts]

Opener bids 4H or unless holding three aces and either a king with an ace, or the king or queen of hearts, or all four aces.  If holding those type hands opener bids 4D, after which 4H is a signoff by responder.

 

[1NT-4D Transfer to Spades]

Opener bids 4S unless holding three aces and either a king with an ace, or the king or queen of spades, or all four aces.  If holding those type hands opener bids 4H, after which 4S is a signoff by responder.

 

[1NT-4NT quantitative]

Opener accepts by showing number of aces.  Now immediate 5NT is signoff and cheapest suit bid asks opener to bid four card suits up-the-line looking for a 4-4 fit.

 

[Choice in use 4m transfers or Jacoby]

Responder has two ways of transferring to a major and bidding game in the suit – either the four of a minor transfer or the two level Jacoby transfer.  Responder can choose which sequence to use based on whether a lead directional double is wanted or not, or the type of information the transfer will obtain from opener.

 

Advanced ETM 1NT Structure

 

[Overview]

The advanced version of the ETM Structure makes three significant changes:

1)       Uses the Jacoby transfer to hearts with some game invitational and game going hands without five hearts - hands that want to play in notrump or perhaps hearts.

2)       Uses second round transfers by responder after a Jacoby transfer to provide better bidding sequences.

3)       Increases the use of the 3D response to 1NT to include additional hand types.

 

The method gives up on playing 2H if responder has five and opener four, but good opponents will rarely let you play 2H on a 5-4 fits and only about half the points.

 

[Advanced Jacoby 2D]

 

Several new hand types can use the advanced Jacoby 2D.  These are:

a)       GI raise to 2NT, with or without four hearts – so a hand that would bid 1NT-2NT in standard or a hand that would bid Stayman over 1NT, and then not finding opener with four hearts would bid 2NT.

b)       Game going with four hearts, wanting to play in 3NT or 4H if a 4-4 fit is found.

c)       Game going with three hearts, wanting to play in 3NT or 4H if a 5-3 fit is found.

 

The Advanced Jacoby 2D is never used when holding four or longer spades.

 

Opener replies to the Jacoby 2D transfer with this bidding schedule:

2H: denies 4Hs, any strength

2S: 5Hs, minimum

2NT: 4Hs, minimum

3C: 5Hs, maximum

3H: 4Hs, maximum

 

After opener’s rebids of 2S, 2NT, or 3C, 3D is a retransfer to 3H.

 

After opener’s rebids of 2S, 2NT, 3C, or 3H then responder can place the contract by bidding 2NT, 3NT, 3H or 4H.  All other bids show Hs.  3C over 2S or 2NT is an artificial game try, asking opener to bid game with a useful minimum.

 

After 2H, responder rebids according to this scheme:

Pass:       To play.

2S:           GI with 5Hs, can be unbalanced, or Transfer GF with 5+Hs & Cs.

2NT:       GI without 5Hs, can have 4Hs but maybe not

3C:          Transfer, GF with 5+Hs & Ds.

3D:          Transfer, can be GI or stronger with 6+Hs.

3H:          5Hs, GF, first offers choice of game for opener.  Opener can bid 3S to offer responder the choice back, asking responder to bid 3NT with 5-3-3-2 or 5-4-2-2 & spread out values, and to bid 4Hs otherwise.

3S, 4C, 4D:             singleton or void in suit bid, 6+Hs, slam try.

3NT:       To play, usually without 5Hs.

4H:          To play.

4NT:       RKCB for Hs.

 

After 1NT-2D-2H-2S, opener bids as follows:

2NT: wants to play in 2NT opposite GI with 5Hs.

3C: maximum with 2Hs.

3D: maximum with 3Hs.

3H: wants to play in 3H opposite GI in Hs. 

Then opposite all these bids, responder can bid:

-          3NT or 4Hs to play.

-          4NT as RKCB for Hs.

-          3S or 4D show singleton/voids in the suit bid and Hs & Cs.

-          3H to show Hs & Cs and no other good bid.

-          4C to show Hs & Cs, at least a good 5-5.

-          3m to show a GI with Hs & five card suit.

 

[Changes to Jacoby 2H Transfer]

Jacoby 2H denies 4+Hs.  With both majors bid Stayman or 3D.

After 1NT-2H-2S, responder rebids:

Pass:       To play.

2NT:       GI with 5Ss.  With 5S and another five card minor suit bid Stayman first.

3C:          Transfer to Ds with GF.

3D:          Transfer to Cs with GF.

3H:          Transfer to Ss, 6+Ss, GI or better.  Opener first assumes the GI hand.

3S:           5Ss, game going or better.  If just game going shows a hand more distributional than just bidding 1NT-2H-2S-3NT, which suggests 5-3-3-2 or 5-4-2-2 with spread out values.

3NT:       Choice of games, flat hand.

4C,4D,4H:              slam try, 6+Ss. singleton or void in bid suit.

4S:           To play.

4NT:       RKCB for Ss. 

 

[1NT-3D Extended Use]

The sequence 1NT-3D is used to ask for a five card major or 4Ss, and is also used to show 5-5 in the majors game going or to bid Gerber afterwards. 

 

After 1NT-3D, opener rebids:

3H: not 4+Ss, can have 5Hs.  3S then asks if 5Hs, 3NT says no.

3S: 4Ss.

3NT: 5Ss.

 

After opener’s rebid:

4C:          Gerber, asks for aces.

4D:          Shows both majors, slam try.

4H:          Shows both majors, game going, but implies mild slam try values over 3S or 3NT since could have just bid 4S.

4S:           To play over 3S or 4S.

 

[Modified Smolen 3H]

The sequence 1NT-2C-2D-3H shows 5Ss, 4+Hs – instead in normal Smolen 3H shows exactly 4Hs.  If 5-5 in the majors, opener has a hand that wants to give opener the opportunity to play 3NT, usually with not good major suits, and does not have slam interest.  With good suits the sequence 1NT-3D is used with game going hand with both majors. 

 

After 1NT-2C-2D-3H, 3S asks hand type.  3NT shows 4H&5Ss, 4H shows 5-5 in the majors, 4S shows 6+S, to play, and 4m are cuebids with 5+Ss, 4Hs and slam interest.

 

[Stayman Flexibility]

Responder, with a balanced or semi-balanced hand, has options other than Stayman.  Responder can decide whether or not to use Stayman based on lead directional concerns, a desire to withhold certain information from the opponents, or considering what other players will do playing traditional methods.  The following table shows what is possible:

 

Hand

Standard Option

Other ETM Option(s)

No four card major, GI

2C Stayman

2D ask/transfer

No four card major, GF

3NT

3D ask, 2D ask/transfer

4Hs, GI

2C Stayman

2D ask/transfer

4Hs, GF

2C Stayman

2D ask/transfer

4Ss, GI

2C Stayman

None

4Ss, GF

2C Stayman

3D ask

Both Majors, GI

2C Stayman

None

Both Majors, GF

2C Stayman

None

 

[Choice of Contract]

ETM offers more choice of contract auctions than most structures.  Many good results can be obtained by playing in the better contract between four of a major (4H or 4S) or 3NT.   Here are some common choice bidding sequences:

 

1NT-2D-2H-2S-2NT-3C: 5Hs & 5+Cs, GI.

1NT-2C-2H-2S:     5Ss, distributional, GI.  If opener now bids 2NT, 3C then shows 5Ss & 5+Cs GI.

1NT-2D-2H-3H-3S: Responder bids 3H to show five, opener offers responder choice of game.

1NT-2H-2S-3S: Responder shows 5Ss and some distribution.

1NT-2H-2S-3NT: A flat hand and 5Ss.

1NT-2D-2H-3D-3H-3NT: The 3D bid was a transfer to 3H showing 6+Hs.  Now 3NT offers choice.

1NT-2D-2H-3D-3NT: Opener bids above 3H with a hand that would accept GI.  3NT offers choice.

1NT-2H-2S-3H-3S-3NT: The 3H bid was a transfer to 3S showing 6+Ss.  Now 3NT offers choice.

1NT-2H-2S-3H-3NT: Opener bids above 3S with a hand that would accept GI.  3NT offers choice.

Complex ETM 1NT Structure

[Overview]

The complex version of the ETM 1NT structure adds second round transfers by responder after using Stayman.  In addition the transfer sequence is designed to reveal opener’s strength and longest suits.

 

[GI balanced and semi-balanced hands without spades]

When holding a GI hand without four or longer spades, or a six card or longer minor, responder must use the 2D ask/transfer bid instead of using Stayman.  The following shows the bids that must be used:

 

Hand

ETM Complex Bid

No four card major, GI

2D asks/transfer

4Hs, GI

2D asks/transfer

4Ss, GI

2C Stayman

Both Majors, GI

2C Stayman

 

This permits a sequence like 1NT-2C-2S-2NT to be a transfer, since responder if holding GI values will either have four spades, in which case can raise spades, or a long minor to transfer to.

 

[ETM Complex Stayman – Opener’s Reply]

 

After 1NT-2C, opener replies as follows:

2D:          No four card major.

2H:          4 or 5Hs, not 4Ss.

2S:           4 or 5Ss, can have 4Hs if 4Ss & maximum.

2NT:       4-4 in the majors, minimum.

 

[ETM Complex Stayman – Overview of Responder’s Rebid]

After opener’s reply to Stayman, this general structure is used for bids 2S to 3S:

2S:           Range ask and is used as well to transfer to Cs.

2NT:       If 2S is available, this shows 5Ss & GI.  After 1NT-2C-2S, this is a club transfer but can be a hand that wants to re-ask after opener bids 3C.

3C:          Transfer to Ds.

3D:          Minor suit singleton, major suit length but not 4 in a major opener showed.

3H/3S:    If opener replied 2M, 3M is GI and 3OM is artificial with 4 in M, either 4-3-3-3 offering choice of game or a slam try.  If opener replied 2D, 3H and 3S are Smolen like, with 5+ in the other major.

 

[ETM Complex Stayman – Responder’s Rebid]

After 1NT-2C-2D, responder rebids as follows:

2D:          No four card major.  After this:

2H:          Both majors, up to GI with at least 5Hs and 4+Ss.  Responder passes with a minimum & 3Hs, bids 3Ss with three spades, and bids 2NT with a maximum, 3Hs & only 2Ss.

2S:           Range check with GI, or transfer to Cs, or used to find out more about opener’s hand.

2NT:       5Ss, GI, distributional, may have a five card or longer minor or 4Hs.

3C:          Transfer to Ds.

3D:          Singleton/void in a minor, 4 or 5 in other minor.  4-4/4-3/3-4 in the majors.  3H asks:

                3S: singleton/void in Cs.

                3NT: singleton/void in Ds, no slam interest unless opener finds singleton is working.

                4C: 5Cs, singleton/void in Ds, slam interest.

                4D: 4-4-1-4 exactly, slam interest.

3H:          Transfer to Ss with 5+Ss, GF, usually 4Hs but can have 5-5 in majors, GF, but not great suits .  3S asks hand type:

 3NT: 4H&5Ss

4H: 5-5 in the majors

4m: cuebids with 5+Ss, 4Hs and slam interest.

4S: 6+S, mild slam interest.

                3S:           5+Hs, 4Ss.  If 6+Hs has slam interest (otherwise just bid 3D Delayed Texas transfer).

3NT:       To play.

4C:          Gerber.

4D:          Delayed Texas transfer to 4H.

4H:          Delayed Texas transfer to 4S.

4NT:       Quantitative, non-forcing but slam invitational.

 

2H:          Four or five hearts, not four spades.  After this:

                2S:           Range check with GI, or transfer to Cs, or used to find out more about opener’s hand.

                2NT:       5Ss & a five card or longer minor, GI.

                3C:          Transfer to Ds.

                3D:          3Hs & 4Ss & a minor suit singleton, 3H asks for minor suit singleton, 3S showing Cs.

                3H:          4Hs, GI. 

3S:           4Hs, either choice of game with 3-4-3-3 or slam try without minor suit singleton/void.

                3NT, 4H:                To play.

4C;4D:    Singleton or void, heart support, slam try.

4NT:       RKCB for hearts.

 

2S:           Four or five spades, may have four hearts if four spades & not a minimum.  After this:

                2NT:       Transfer to clubs, or used to find out more about opener’s hand.

                3C:          Transfer to Ds.

                3D:          3Ss & 4Hs & a minor suit singleton, 3H asks for minor suit singleton, 3S showing Cs.

                3H:          4Ss, either choice of game with 4-3-3-3 or slam try without singleton/void.

                3S:           4Ss, GI.

3NT:       Exactly 3Ss & 4Hs, offers choice between 3NT, 4H and 4S.  With 4Hs and 2Ss use 2D asking bid or use 1NT-2C-2S-2NT-3C-3D ask sequence.

                4C, 4D, 4H:            Singleton or void, spade support, slam try.

                4S:           To play.

                4NT:       RKCB for spades.

 

2NT:       4-4 in the majors, minimum. 

                3C:          Asks openers shape or transfer to Ds.

                                3D:          4-4-2-3

                                3H:          4-4-3-2

                                Now game bids are to play, 4m is natural, and other suit bids show Ds & suit bid.

                3D:          Transfer to Hs.

                3H:          Transfer to Ss.

                3S:           Transfer to Cs.

 

[Minor suit transfers after Stayman reply]

After opener’s reply to Stayman, 3C is always a transfer to diamonds.  After 1NT-2C-2D or 2H, 2S is a range ask and is also used by the club transfer hands.  After 1NT-2C-2S, 2NT is the club transfer, and is also used by hands that want to re-ask.

 

After 2S range check, opener rebids either 2NT with a minimum, 3C with a maximum.  Also after 1NT-2C-2S-2NT, opener usually rebids 3C.  After either sequence then:

Pass:       To play there.

3C:          To play in 3C unless opener has great fit.

3D:          Re-ask, see below.

3H/3S:    See below.

3NT:       To play.

4C:          RKCB for Cs.

 

After the 3C transfer to Ds, opener rebids usually rebids 3D.  Then:

Pass:       To play there.

3H/3S:    See below.

3NT:       Non-forcing slam try with Ds.

4D:          RKCB for Ds.

 

After 1NT-2C-2S-2NT(transfer)-3C, these are responder’s rebids:

                Pass:       To play there.

                3D:          Re-ask, see-below.

                3H/3S:    See below.

                3NT:       Non-forcing slam try with Cs.

                4C:          RKCB for Cs.

 

After the transfers 1NT-2C-2S-2NT, and 1NT-2C-2S-3C, opener might have both majors and a maximum.  Then opener rebids 3H with 4-4 in the majors, after which responder can bid 3S to ask for three cards in the minor that was transferred to, with 3NT showing only two in the suit.  For example 1NT-2C-2S-2NT(transfer to C)-3H(4-4 in majors)-3S(asks)-4C shows 4-4-2-3.  Also over 3H, responder can signoff in 4H, 4S or 3NT.  3NT is a signoff when holding length in the minors and was looking for a minor suit fit.

 

After 1NT-2C-2D then a minor suit transfer and opener’s rebid, responder bids:

3H:          4Hs & 5+ in the minor, GF, either a singleton or extra values, and less than 3Ss (so if singleton in other minor will have 6+ in minor).  3S asks for singleton:

                3NT: singleton in other minor, no extra values.

                4m: singleton in Ss, no extra values.

                4om: singleton in other minor, extra values.

                4H: no singleton, extra values.

                4S: singleton in Ss, extra values.

3S:           4Ss & 5+ in the minor, GF, either a singleton or extra values, and less than 3Hs (so if singleton in other minor will have 6+ in minor).  4C asks for singleton, with:

                4D: singleton in other minor, may have extra values.

                4H: singleton in Hs, may have extra values.

                4S: no singleton, extra values.

 

After 1NT-2C-2H, then a minor suit transfer and opener’s rebid, responder can bid:

3H:          4Ss & 5+ in the minor, GF, singleton in Hs or no singleton & extra values.  3S asks:

                3NT: singleton H, no extra values.

                4m: no singleton, extra values.

                other: singleton H, extra values.

                3S:           4Ss & 6+ in the minor, and singleton or void in the other minor.

 

After 1NT-2C-2S, then a minor suit transfer and opener’s rebid, responder can bid:

3H:          4Hs & 5+ in the minor, GF, singleton in Ss or no singleton & extra values.  3S asks:

                3NT: singleton S, no extra values.

                4m: no singleton, extra values.

                other: singleton S, extra values.

                3S:           4Hs & 6+ in the minor, and singleton or void in the other minor.

 

[Stayman Suit Re-ask]

There are three sequences used to find out more of opener’s shape.  Two of them first find out if opener is minimum or maximum, but there is no range ask available over the 2S bid.

 

1NT-2C-2D-2S(range asks)-2NT or 3C-3D re-asks:

                3H:          4+Cs, can have 4Ds.  3S asks for 4Ds, 3NT is no.

                3S:           5+Ds, not 4Cs

                3NT:       3-3-4-3 or 3-3-3-4

 

1NT-2C-2D-2H-2S(range asks)-2NT or 3C-3D re-asks:

                3H:          4+Cs or 3-4-3-3.  3S asks if 4+Cs, 3NT is no.

                3S:           4+Ds.

                3NT:       5Hs.

 

1NT-2C-2D-2NT-3C-3D(asks):

                3H:          4+Cs or 4-3-3-3.  3S asks if 4+Cs, 3NT is no.

                3S:           4+Ds.

                3NT:       5Ss.

 

After these bids, 4m is RKCB for that minor suit if both minors are available: if only 4D is available it is RKCB the minor opener last showed.  4NT is slam invitational, not-forcing.  If opener has shown one major (and denied the other), the other major is RKCB for the major suit.  Responder can choose to use RKCB in one suit, and then later correct to a different suit at the slam level, using RKCB to find out the holding in a suit.

 

[Choice of game with 4-3-3-3 major fit]

When responder has 4-3-3-3 and game force then a choice can be offered opener.  1NT-2C-2M-3OM shows either a slam try or 4-3-3-3 with 4 in M.  Opener should bid 3NT if would want to play in notrump opposite the 4-3-3-3.  If responder has a GI and opener will accept, opener should give responder the chance to get out in 3NT if holding 4-3-3-3 by this sequence: 1NT-2C-2M-3M-3NT.

 

[4 card major & six or longer in minor]

ETM Complex Stayman is used by used with any hand with a 4 card major, and a six card minor, regardless of strength.  If holding minimum values, responder can signoff if no major suit fit is found via Stayman, by using the minor suit transfers.  For example 1NT-2C-2S-3C-3D-Pass would show a hand with 4Hs, 6+Ds, and not enough values for game.

 

[4-4-4-1 GF]

Holding 4-4-4-1 shape GF, respond 3M to 1NT with a singleton in a major suit.  With a minor suit singleton respond 2C, and if opener bids one the majors, jump to 4m to show the minor suit singleton and the major suit bid.  Instead if opener replies 2D, use the 3D bid to show a minor suit singleton.

 

[Responder shows singleton]

With ETM Complex Stayman, responder with five or longer in a minor, and a four card major, can show the singleton held, including showing a singleton in the major suit opener replied in.  Note these two powerful sequences:

1NT-2C-2M-3D:    singleton/void in a minor, 3 in M.  Now the partnership can find 4-3 or 5-3 major fits, minor suit games & slams etc.

1NT-2C-2M-transfer-reply-3S: singleton/void in other minor, 2 or less in M, 6+ in minor.

 

[Flat hands use re-ask]

Holding a flat balanced hand, with no singleton or six card minor, responder can use the re-ask to investigate for fits and often determine minimum/maximum strength.  Responder uses Stayman, then re-asks with 2S or bids 2NT if 2S not available, then re-asks with 3D.  For example holding 2-3-4-4 (4-4 minors) with slam interest, responder might have a sequence like this: 1NT-2C-2H-2S(range?)-3C(max)-3D(ask)-3H(not five Hs or 4Ds)-3S(ask)-4C(4Cs)-4D(RKCB for Cs).

 

[Spade showing 2NT]

The sequences 1NT-2C-2D-2NT and 1NT-2C-2H-2NT show 5Ss and GI values.  The sequence must have some distribution for without 4Hs or a five card minor, responder can simply transfer to Ss with Jacoby 2H, then rebid 2NT.  The 2NT bid over 2H promises 5Ss and a five card or longer minor, since with 5Ss and 4+Hs responder would just raise Hs.  The 2NT sequence does get the partnership beyond 2S, but in return it allows opener to play the hand, acting as a transfer.  The corresponding sequence in the ETM Advanced 1NT Structure is 1NT-2C-2D-2S or 1NT-2C-2H-2S, which allows the partnership to play in 2S, but has responder play the hand if spades will be trump.

 

[Should You Use Complex Stayman]

Hands where ETM Complex Stayman delivers a win over standard methods occur, but not very frequently.  One should only use the method for serious competition, with plenty of beforehand practice, and good memories of both partners. 

 

ETM Weak Notrump Version of 1NT Structure

 

[Overview]

This 1NT structure is designed for weak notrumps (12-14/13-15 normally) where a five card major is unlikely to be held.  What is different from other structures is 2D JS – Jacoby Stayman, which is a combination of Jacoby transfer and Game Forcing Stayman.

 

[Structure]

2C:          Stayman, promises a four card major if balanced.  2C can be bid with a weak hand.

2D:          Jacoby Stayman, both a transfer to hearts and Game Forcing Stayman.

2H:          Jacoby transfer showing 5+Ss.

2S:           Range ask, or both minors GI+, or planning to use Gerber next.

2NT:       Transfer to clubs, can have a four card major.

3C:          Transfer to diamonds, no four card major.

3D:          Transfer to Hs showing Hs & a five+ card minor, GF.  3H asks for minor, 3S showing Cs.

3H:          4-1-4-4 or 4-0-5-4 or 4-0-4-5, game forcing.

3S:           1-4-4-4 or 0-4-5-4 or 0-4-4-5 game forcing.

Game:     These game bids to play: 3NT, 4H, 4S, 5C, 5D.

4C:          Transfer to 4H.

4D:          Transfer to 4S.

4NT:       Both minors, to play in game, opener picks minor to play in.  With quantitative slam try bid 2S.

 

Details

 

[1NT-2C Stayman]

2D:          No four card major.  After this:

2H:          Signoff with both majors.  Opener passes or bids 2S.

2S:           5Ss, GI values, distributional or 4Hs (otherwise 1NT-2H-2S-2NT).

2NT:       GI.

3m:          GI (or close to GI values if 3C), usually 6+ suit, does not promise four card major.

3H:          GI, 5 or 6 in suit, usually 4Ss.

3S:           GI, 6Ss, 4Hs.

3NT:       To play.

4C:          Gerber.

4D:          Delayed Texas transfer to 4H.

4H:          Delayed Texas transfer to 4S.

4NT:       Quantitative, non-forcing but slam invitational.

 

2H:          Four hearts, may have four spades.  After this:

2S:           Four spades, GI values, NF, may have six card or longer minor.  Opener bids 2NT to deny 4Ss and show a minimum.  With a maximum and not 4Ss, opener usually bids 3NT, but can bid 3C or 3D as pass or correct in case responder has a long minor there and not good GI values.  With 4Ss opener can pass 2S with bare minimum, raise to 3S with an average minimum, and bid 4S with any maximum. 

                2NT:       Five spades, distributional hand, usually with a five card or longer minor, GI.

                                3m is now pass or correct – pass if holding the minor, bid otherwise.

                3m:          GI, 6+ suit, no four card major.

                3H:          GI.

                3S,4C;4D:               Singleton or void, heart support, slam try.

                3NT, 4H:                To play.

                4NT:       RKCB for hearts.

 

2S:           Four spades.  After this:

                2NT:       GI with four hearts.

                3m:          GI or close to GI values, usually 6+ suit, does not promise four hearts.

                3H:          Slam try in Ss.

                3S:           GI

                3NT, 4S: To play.

                4C, 4D, 4H:            Singleton or void, spade support, slam try.

                4NT:       RKCB for spades.

 

[1NT-2D & 1NT-2H Jacoby transfers]

1NT-2H is a Standard Jacoby transfer.   With distributional hand with 5Ss and a five card minor or 4sH use Stayman.  Use 2H Jacoby transfer followed by 3H to show 5-5 in the majors, GI.  Use 2D with game going or stronger values and both majors.  See below for more details on 2D JS – Jacoby Stayman.

 

[1NT-2S Range ask/Both minors GI+/Gerber Planned]

The first use of 1NT-2S is like 1NT-2NT in standard, a GI hand with no four card major.  2S can also be used with a hand with both minors, at least GI values, or planning on using Gerber next (or planning on using it if opener shows a maximum).  After 2S opener rebids:

2NT:       minimum, not both minors.  Over 2NT:

3C:          shows both minors to play (had GI values)

3D:          both minors & slam interest,

3M:         a singleton or void & no slam interest, forcing to 3NT or 4m

3NT:       to play.

4m:          natural, 6+ suit, 4 in other minor, slam try.

                3C:          4-4 or 5-4/4-5 in the minors, minimum.

    &n