[NaeosPsy]

Pros:
Conceals 4COM of opener if not needed
Lets to rightside contracts which wouldn't be possible to rightside with transfers
1NT - 2M is to play
Can stop in 2M in case of min opener and 5C INV
Solves the problem of 1NT - 2C - 2S - 2NT with 5H in usual 2-way Stayman
Built in relay

Cons:
More chances for opponents to double for lead, although they should fear penalty a little bit.
A bit harder competitive bidding.
No classical garbage stayman.
Cannot relay full shape sometimes.



1NT - 2C(4S INV, 5M INV,4(5)-4(5) M INV, 5+S ST, C INV, 5M COG)
2D - no 4S
........2H - INV 5 or 4 if 4-4M, mostly 5,if after raise partner bids 3NT, it was 4. 4-2 should be very rare, but 2NT was a bad contract there too.
........2S - INV 5
........2NT - bal INV
........3C - INV w/ C
........3D - 5S 4D
........3H - 5S 4C
........3S - 5S COG
........3NT - 5H COG
........4CDH - splinter, 6+S
........4S - bal, many spades, ST
2H - 4S min
........P - INV W/H
........2S to play
........2NT - S fit, asking for more(the same as relay when opener has shown hearts)
........3C - INV w/C
........3D - 5S 4C with shortage
........3H - 5S 4D with shortage
........3S INC
........3NT - COG W/5H
2S - 4S S max
........the same as 1NT-2C-2H
2NT - Both M max
........3C SO
........3M chooses major, asks cue
3C - both M min
........3M chooses major, asks cue


1NT - 2D(4H INV, 5+H ST, 4H GF, both M GF, anything that wants to relay the shape, C ST)
2H - no 4H
........2S ask
................2N denies spades, 3C asks further, 3D=5-5M GF, 3H, 3S - 5-4M GF
................................3D - 44m, 3H asks for doubleton
................................3H - 5C3D32
................................3S - 5C332D
................................3NT - 5D332
................3C 4 spades, 4 diamonds, 3D asks doubleton
................3D 4 spades, 4 clubs, 3H asks doubleton
................3H 4333 max
................3S 5332 spades
................3N 4333 min
........2NT INV
........3C - ST 6+C
........3D - 5H 4D ST
........3H - 5H 4C ST
........3S4C4D - splinter with 6+ H
........3NT to play
........4H no shortness, 6+H, ST
2S - 4H no 4S
........2N asks
................3C - 4 H, 4 diamonds
................3D - 4 H, 4 clubs
................3H - 4333 max
................3S - 5 spades
................3N - 4333 min
2NT - both M
........3C - ST w/ C
........3D sets H as trump
........3H INV w/ 4 hearts
3S sets S as trump


1NT - 2M to play
1NT - 2NT - transfer to D, 3C min, 3D max
1NT - 3C weak with C, 6+
1NT - 3D - 6+M INV
1NT - 3M - splinter in other M, 1345, 0355
1NT - 3NT to play
1NT - 4C - gerber
1NT - 4D/4H - Texas
1NT - 4S - both m


Improvements, suggestions and opinions welcome.

[Kungsgeten]

I think it is interesting.

1NT-2D; 2H-2S. This auction is the way to go with 4-4 majors and a GF? It seems to reveal a lot about opener if the only thing responder want is to find out if we have a spade fit.

1NT-2C; 2NT/3C. I think you should play 3D/H as transfers here. There seems to be no way to sign off in 3M otherwise? Or is 3D a puppet to 3H?

Here's a possible improvement

1NT-2C; 2D---
2H = INV, 5+!s or balanced INV
...2S = Denies spade INV
...2N = Accepts spade INV, denies balanced INV
...3S = Max with 3 spades
...3N = Max with 2 spades
2S = INV+ with 4-4 majors (solves the problem I listed above)
2N = INV with 5 hearts

[NaeosPsy]

Kungsgeten, on 2015-January-28, 04:44, said:

I think it is interesting.

1NT-2D; 2H-2S. This auction is the way to go with 4-4 majors and a GF? It seems to reveal a lot about opener if the only thing responder want is to find out if we have a spade fit.

1NT-2C; 2NT/3C. I think you should play 3D/H as transfers here. There seems to be no way to sign off in 3M otherwise? Or is 3D a puppet to 3H?

Here's a possible improvement

1NT-2C; 2D---
2H = INV, 5+!s or balanced INV
...2S = Denies spade INV
...2N = Accepts spade INV, denies balanced INV
...3S = Max with 3 spades
...3N = Max with 2 spades
2S = INV+ with 4-4 majors (solves the problem I listed above)
2N = INV with 5 hearts

1NT-2C;3C - 3D should be a puppet to 3H, I don't think you should transfer to weak hand.

Your idea is very nice. I guess the easier bidding outweighs stopping in 2H, so thank you. .

After looking at it I realized that there is no way to show 4S and SO in 1NT-2C-2D. I think that I could take out the 5H COG and put it in 1NT-3D and have SO with 4S in that place. Oppener wouldn't have to show 4S when responder is not interested in that and on 1NT-3D opener will only have to bid 3NT if doubleton H and accepting the INV, everything else is the same(responder rebids 3NT if able).

[Zelandakh]

You might find this an interesting read. Once you get down to using 2m to ask about specific 4 card majors, this is the logical result (if a little too complicated/unusual for most pairs).

[NaeosPsy]

Thank you, I have read it.

[rbforster]

Looks pretty good. I play a simpler fast-arrival setup with weak NT, so for us both 1N-2M and 1N-3m are sign offs; obviously you can do more with transfers there if you're willing to give up pressuring the opponents. We play a straight up two-way stayman system, 2C garbage or invitational with 4+M (2N direct is natural no 4M), and 2D is GF relay.

[benlessard]

Ive played no transfers for a couple of years and its awesome for a big field tournament, its also nice when you play vs a weaker team that play 15-17 not only it protect you by having the same declarer. 1m-1M vs 1NT-transfers but 1NT-2M (to play) is a tough nut to defend against.

I now play with transfers but its somewhat similar to your scheme. We avoid 1NT-2C-2S vs long H inv and we control opener responses to 2C.

1NT--???

2C = all the inv, all the both M hands or both m hands, the Romex stayman hands. Can be a D signoff
2D= transfer could be 4 if 4H+5m GF (weak or GF never inv)
2H = transfer could be 4 if 4H+5m GF (weak or GF never inv)
2S= inv 5or+ Spades
2NT = Clubs inv or better
3C = D inv or better
3D = puppet
3H = 13(54)
3S = 31(45)


2C is all the inv, all the both M or both m hands , the Romex stayman hands.

2C--??

2D almost forced.
2H min and 4 or 5H
rest is max with supper accept in D.

after

1NT-2C-2D-??

Pass= D signoff
2H= inv with 5 or 6H (we play 2H not 3H/2Nt)
2S= Inv with 4S(may have 4H) (1nt-2S is inv with 5/6S)
2NT = Inv no M
3C = Romex stayman
rest is single suiter D

So all the inv hands we can find the fit and stop in 2M if opener is minimum. We have all the transfers for GF hands (transfer in M can be 4M+5m)and we have some bids for both minors.
We can signoff in 2D but not in 3m.
We dont have classical garb stayman wich is inferior to the D signoff anyway. We cannot handle the (4441)

Using 1NT-2D for only the 5H+ is poor, the frequency is too low for such a precious bid. Using 1NT-2H for 4S+5m or 5S is better than using it just for 5S (non inv) hands.

Minors signoff at the 3 level are overated especially those in transfers.

[benlessard]

I also recall reading on the bbo forum that there was a clever 2 under transfers scheme that I tought was superior to the ETM scheme.

[NaeosPsy]

Looks very interesting.
How do you differ between 5M4m and 4M5m? Do you use second round transfers similar to ETM scheme?

[benlessard]

NaeosPsy, on 2015-February-03, 14:07, said:

Looks very interesting.
How do you differ between 5M4m and 4M5m? Do you use second round transfers similar to ETM scheme?

Weve tried many stuff but i think its simpler to keep it symmetric.

transfer in a maj and bid is GF.

1NT-2D-2H-??

2S= 4+clubs 4+hearts
2NT = single suiter or other type of hands.
3C = 5D+4H
3D = 5H+4/5D low short
3H = 5H+4/5D high short
3S = 2542
after

1NT-2D-2H-2S-2NT-?? we use the same scheme but with clubs.
3C = 5C+4H
3D = 5H+4/5C low short
3H = 5H+4/5C high short
3S = 2524

With spades its similar except that 52(42) are in other type of hands.

We have a rule that if opener bypass 3NT quickly hes promising a sure M fit, if he punt under 3NT and bid over 3Nt hes got minor fit. Most of our bid under 3NT are looking for the best game (weak nt = game before slam is more important)