I tried to devise a relay structure for the 1♦ opener of a precision system I want to foister on partner but I'm terrible at it. I understand the fibonacci concept but I can't put it into practice. Anyway, as I failed, I thought I would try to borrow someone else's. Can anyone share something good?

Our 1 diamond opener is 10-15 with exactly 4M and a longer minor or any 4441 shape. It would be nice if we could fit a NT range in there as well (I suspect it shouldn't be difficult as the 1D doesn't seem overloaded), but it's not crucial if it would spoil a nice method.

Is it all off after interference?

Assume no regulatory issues.

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## Precision Diamond Response/Relay Structure

### #2

Posted 2011-July-26, 15:25

Here's a fairly simple symmetric relay system using 1♥ as hearts or GF relay over 1♦. Here's another using 1NT as the relay. They both assume not balanced, but could be tweaked.

### #3

Posted 2011-July-26, 18:42

enidr, on 2011-July-26, 15:12, said:

I tried to devise a relay structure for the 1♦ opener of a precision system I want to foster on partner but I'm terrible at it. I understand the Fibonacci concept but I can't put it into practice. Anyway, as I failed, I thought I would try to borrow someone else's. Can anyone share something good?

Our 1 diamond opener is 10-15 with exactly 4M and a longer minor or any 4441 shape. It would be nice if we could fit a NT range in there as well (I suspect it shouldn't be difficult as the 1D doesn't seem overloaded), but it's not crucial if it would spoil a nice method.

Is it all off after interference?

Assume no regulatory issues.

Our 1 diamond opener is 10-15 with exactly 4M and a longer minor or any 4441 shape. It would be nice if we could fit a NT range in there as well (I suspect it shouldn't be difficult as the 1D doesn't seem overloaded), but it's not crucial if it would spoil a nice method.

Is it all off after interference?

Assume no regulatory issues.

RESPONSES to 1♦: QUICK SUMMARY

**Edited 7/26/11:**Responses are playing that 1♦ promises a 4-cd major!

1 Major:

(a) 0-5 HCP Bid a 3M with 0-2♦, OPENER AVOIDS JUMP REBIDS: Safety Net!

(b) 6-10 HCP 4-card M suit or better, bid ♥s first even if ♠s are longer

1NT 6-10 HCP Balanced, denies a 4-card major

2♣, 3♣. 4♣ 0+/~10/12+ HCP BOTH MINORS: Pass / Correct / Raise

2♦ 10+ HCP L.R.+ Does NOT deny a 4M or 5M (if G.F.)

2 M 10-11 HCP L.R. 4-4 or 5-card Major

e-mail me for more details if interested ...

Ultra ♣ Relay: see Daniel's web page: https://bridgewithda...19/07/Ultra.pdf

C3: Copious Canape ♣ is still my favorite system. (Ultra upgraded, PM for notes)

Played Mosca ♣ (Nightmare-Fantunes-Millennium ♣ like) system with canapé, 11-14 NT.

Santa Fe Precision published 8/19. TOP3 published 11/20. Also Magic experiment (Science Modernized) with Lenzo. 2020: Jan Eric Larsson's Cottontail Club. 2020: C3 Reborn - T-Precision with Relays & 4cd M. BFUN (Bridge For the UNbalanced) 2021: Canape & Strong ♣ Relay.

C3: Copious Canape ♣ is still my favorite system. (Ultra upgraded, PM for notes)

Played Mosca ♣ (Nightmare-Fantunes-Millennium ♣ like) system with canapé, 11-14 NT.

Santa Fe Precision published 8/19. TOP3 published 11/20. Also Magic experiment (Science Modernized) with Lenzo. 2020: Jan Eric Larsson's Cottontail Club. 2020: C3 Reborn - T-Precision with Relays & 4cd M. BFUN (Bridge For the UNbalanced) 2021: Canape & Strong ♣ Relay.

### #4

Posted 2011-July-26, 20:35

Here's a way to fix the first link to include balanced hands in 1D by putting them in 1S, 1N, and 2H. It's not ideal in that 1D-1H-1S may be on 3 with a balanced hand without 4 hearts, which hurts your non GF auctions slightly.

Added: Oops, this is more than you asked for. All hands opening 1♦ in your system have a 4-card major (or possibly are balanced)? What I have here is for 1D nebulous, excluding a 5 card major or a single-suited 6 card minor.

1D-1H: natural or GF relay

1D-1H-1S: Not 4 hearts. (4 spades) or (3 spades and balanced).

1D-1H-1N: 4 hearts, any.

1D-1H-2C: 5+ clubs, 4 diamonds

1D-1H-2D: 4 clubs, 5+ diamonds

1D-1H-2H: 3 hearts and 1-2 spades. (Some overlap with 2m; use judgement.)

1D-1H-2S: 5-5 or longer minors

1D-1H-1S followups. 2C = relay.

1D-1H-1S-2C-2D: 3+ spades, balanced, not 4 hearts

1D-1H-1S-2C-2H: spade-club 2-suiter

1D-1H-1S-2C-2S: 3-suiter short in hearts

1D-1H-1S-2C-2N+: zoom to spade-diamond 2-suiter

1D-1H-1S-2C-2D followups: 2H = relay.

1D-1H-1S-2C-2D-2H-2S: 3 spades, 4+ diamonds

1D-1H-1S-2C-2D-2H-2S-2N-3C: 3-2-4-4

1D-1H-1S-2C-2D-2H-2S-2N-3D: 3-2-5-3

1D-1H-1S-2C-2D-2H-2S-2N-3H: 3-3-4-3

1D-1H-1S-2C-2D-2H-2S-2N-3S: 3-3-5-2

1D-1H-1S-2C-2D-2H-2N: 3 spades, not 4+ diamonds

1D-1H-1S-2C-2D-2H-2N-3C-3D: 3-2-3-5

1D-1H-1S-2C-2D-2H-2N-3C-3H: 3-3-3-4

1D-1H-1S-2C-2D-2H-3C: 4-4 spades and diamonds

1D-1H-1S-2C-2D-2H-3D: 4-2-3-4

1D-1H-1S-2C-2D-2H-3H: 4-3-2-4

1D-1H-1S-2C-2D-2H-3S: 4-3-3-3

1D-1H-1N followups. 2C = relay.

1D-1H-1N-2C-2D: balanced, 4 hearts or 3-suiter short in spades or diamonds

1D-1H-1N-2C-2H: heart-club 2-suiter

1D-1H-1N-2C-2S: 3-suiter short in clubs

1D-1H-1N-2C-2N+: zoom to heart-diamond 2-suiter

1D-1H-1N-2C-2D followups. 2H = relay.

1D-1H-1N-2C-2D-2H-2S: balanced, 4 hearts

1D-1H-1N-2C-2D-2H-2S-2N-3C: 4-4 majors (then show 4-4-2-3, 4-4-3-2)

1D-1H-1N-2C-2D-2H-2S-2N-3D: 4-4 hearts diamonds (then show 2-4-4-3, 3-4-4-2)

1D-1H-1N-2C-2D-2H-2S-2N-3H: 2-4-3-4

1D-1H-1N-2C-2D-2H-2S-2N-3S: 3-4-2-4

1D-1H-1N-2C-2D-2H-2S-2N-3N: 3-4-3-3

1D-1H-1N-2C-2D-2H-2N: 3-suiter short in spades

1D-1H-1N-2C-2D-2H-3C+: 3-suiter short in diamonds

1D-1H-2H followups. 2S = relay.

1D-1H-2H-2S-2N: 1 spade (then show 1-3-4-5, 1-3-5-4)

1D-1H-2H-2S-3C: 2-3-3-5

1D-1H-2H-2S-3D: 2-3-4-4

1D-1H-2H-2S-3H: 2-3-5-3

It might be good to move more hands to 2H, as there's room.

Added: Oops, this is more than you asked for. All hands opening 1♦ in your system have a 4-card major (or possibly are balanced)? What I have here is for 1D nebulous, excluding a 5 card major or a single-suited 6 card minor.

1D-1H: natural or GF relay

1D-1H-1S: Not 4 hearts. (4 spades) or (3 spades and balanced).

1D-1H-1N: 4 hearts, any.

1D-1H-2C: 5+ clubs, 4 diamonds

1D-1H-2D: 4 clubs, 5+ diamonds

1D-1H-2H: 3 hearts and 1-2 spades. (Some overlap with 2m; use judgement.)

1D-1H-2S: 5-5 or longer minors

1D-1H-1S followups. 2C = relay.

1D-1H-1S-2C-2D: 3+ spades, balanced, not 4 hearts

1D-1H-1S-2C-2H: spade-club 2-suiter

1D-1H-1S-2C-2S: 3-suiter short in hearts

1D-1H-1S-2C-2N+: zoom to spade-diamond 2-suiter

1D-1H-1S-2C-2D followups: 2H = relay.

1D-1H-1S-2C-2D-2H-2S: 3 spades, 4+ diamonds

1D-1H-1S-2C-2D-2H-2S-2N-3C: 3-2-4-4

1D-1H-1S-2C-2D-2H-2S-2N-3D: 3-2-5-3

1D-1H-1S-2C-2D-2H-2S-2N-3H: 3-3-4-3

1D-1H-1S-2C-2D-2H-2S-2N-3S: 3-3-5-2

1D-1H-1S-2C-2D-2H-2N: 3 spades, not 4+ diamonds

1D-1H-1S-2C-2D-2H-2N-3C-3D: 3-2-3-5

1D-1H-1S-2C-2D-2H-2N-3C-3H: 3-3-3-4

1D-1H-1S-2C-2D-2H-3C: 4-4 spades and diamonds

1D-1H-1S-2C-2D-2H-3D: 4-2-3-4

1D-1H-1S-2C-2D-2H-3H: 4-3-2-4

1D-1H-1S-2C-2D-2H-3S: 4-3-3-3

1D-1H-1N followups. 2C = relay.

1D-1H-1N-2C-2D: balanced, 4 hearts or 3-suiter short in spades or diamonds

1D-1H-1N-2C-2H: heart-club 2-suiter

1D-1H-1N-2C-2S: 3-suiter short in clubs

1D-1H-1N-2C-2N+: zoom to heart-diamond 2-suiter

1D-1H-1N-2C-2D followups. 2H = relay.

1D-1H-1N-2C-2D-2H-2S: balanced, 4 hearts

1D-1H-1N-2C-2D-2H-2S-2N-3C: 4-4 majors (then show 4-4-2-3, 4-4-3-2)

1D-1H-1N-2C-2D-2H-2S-2N-3D: 4-4 hearts diamonds (then show 2-4-4-3, 3-4-4-2)

1D-1H-1N-2C-2D-2H-2S-2N-3H: 2-4-3-4

1D-1H-1N-2C-2D-2H-2S-2N-3S: 3-4-2-4

1D-1H-1N-2C-2D-2H-2S-2N-3N: 3-4-3-3

1D-1H-1N-2C-2D-2H-2N: 3-suiter short in spades

1D-1H-1N-2C-2D-2H-3C+: 3-suiter short in diamonds

1D-1H-2H followups. 2S = relay.

1D-1H-2H-2S-2N: 1 spade (then show 1-3-4-5, 1-3-5-4)

1D-1H-2H-2S-3C: 2-3-3-5

1D-1H-2H-2S-3D: 2-3-4-4

1D-1H-2H-2S-3H: 2-3-5-3

It might be good to move more hands to 2H, as there's room.

### #5

Posted 2011-July-26, 21:51

enidr, on 2011-July-26, 15:12, said:

Our 1 diamond opener is 10-15 with exactly 4M and a longer minor or any 4441 shape. It would be nice if we could fit a NT range in there as well (I suspect it shouldn't be difficult as the 1D doesn't seem overloaded), but it's not crucial if it would spoil a nice method.

I suppose you do something like have the 2m openers be 6+m or 5m-4om?

Here's a simple symmetric/symmetric-like relay system for this, using 1N as GF relay. I've allowed you to open 5m-4om-2-2 with 1D if you judge it best.

1D-1N-2C: (4 hearts, longer minor) or (balanced, no 4 card major, not 4333)

1D-1N-2C-2D-2H: 4 hearts, 5+ diamonds

1D-1N-2C-2D-2S: balanced, no 4 card major

1D-1N-2C-2D-2N+: zoom to 4 hearts, 5+ clubs

1D-1N-2D: balanced with a 4 card major or 3-suited red short or 4C-3-3-3 or 5C-4D-2-2

1D-1N-2D-2H-2S: 4 hearts

1D-1N-2D-2H-2N: 4 spades, not 4 hearts

1D-1N-2D-2H-3C+: 3-suited red short or 4C-3-3-3 or 5C-4D-2-2

1D-1N-2H: 4 spades, 5+ diamonds

1D-1N-2S: 3-suited black short or 4D-3-3-3 or 5D-4C-2-2

1D-1N-2N+: zoom to 4 spades, 5+ clubs

For the 4M-5+m hands, see the 2-suiter table here (includes 4M-5m-2-2).

1D-1N-2S or 1D-1N-2D-2H-3C+ followups:

1D-1N-2S-2N-3C: 4m333 or 5m4om22 (do them in this order next)

1D-1N-2S-2N-3D: minor suit short (do 4-4-(41) then 4-4-(50) next)

1D-1N-2S-2N-3H: major suit short (41)-4-4

1D-1N-2S-2N-3S: major suit short (40)-4-5

1D-1N-2S-2N-3N: major suit short (40)-5-4

1D-1N-2D-2H-2S followups

1D-1N-2D-2H-2S-2N-3C: 4H, 4S (then 44-23 44-32)

1D-1N-2D-2H-2S-2N-3D: 4H, 4D (then 44-23 44-32)

1D-1N-2D-2H-2S-2N-3H: 4H 4C 23

1D-1N-2D-2H-2S-2N-3S: 4H 4C 32

1D-1N-2D-2H-2S-2N-3N: 4H 333

1D-1N-2D-2H-2N followups

1D-1N-2D-2H-2N-3C-3D: 4S 4D (then 44-23 44-32)

1D-1N-2D-2H-2N-3C-3H: 4S 4C 23

1D-1N-2D-2H-2N-3C-3S: 4S 4C 32

1D-1N-2D-2H-2N-3C-3N: 4S 333

1D-1N-2C-2D-2S followups:

1D-1N-2C-2D-2S-2N-3C: 5 clubs (then 2335, 3235, 3325)

1D-1N-2C-2D-2S-2N-3D: 4-4 minors (do 2-3-4-4 then 3-2-4-4)

1D-1N-2C-2D-2S-2N-3H: 2-3-5-3

1D-1N-2C-2D-2S-2N-3S: 3-2-5-3

1D-1N-2C-2D-2S-2N-3N: 3-3-5-2

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