2♦/♥/♠ Openings
- raise to game or slam
- to play, can be offensive or just real values
- any other raise
- PRE
- 2NT
- ASK, depends on position:
- 1st position opening for strength (see below)
- 2nd position opening for feature (side A or K)
- by passed hand shows maximum of pass w/good 4+support
- suit 2nd lvl
- to play, 6+ suit
- suit 3rd lvl
- nat INV, 6+ suit (only 2♠-3♥ is GF 5+)
- 2M-4m
- FJ
- 2♦-4♣ and 2M-4NT
- Simple Blackwood
Ask for strength
2M-2NT
- 3♣
- 9-10
- 3♦
- 7-8
- 3♥
- 5-6
2♦-2NT
- 3♣
- (8)9-10
- 3♦
- 5-7(8)
2♦-2NT-3m
- pass or 3♦
- to play
- 3M
- 5+M, GF
- 4♣
- ask for shortness, step answers: none/lowest/middle/highest
- 4♦
- nat, GF
- 4♥
- Kickback for ♦
2♥-2NT-3♣
- 3♦
- ask for shortness, step answers: none/lowest/middle/highest
- 3♥
- S/T
- 3♠
- nat GF, 5+♠
- 3NT
- to play
- 4♣ and higher
- control-bids and Kickback for ♥
2♥-2NT-3R
- pass or 3♥
- to play
- 3♠
- nat, 5+♠, GF
- 3NT
- to play
- 4♣ and higher
- control-bids and Kickback for ♥
2♠-2NT-3♣
- 3♦
- ask for shortness, step answers: none/lowest/middle/highest
- 3♥
- nat INV, 6+♥
- 3♠
- S/T
- 3NT
- to play
- 4♣ and higher
- control-bids and Kickback for ♠
2♠-2NT-3R
- pass or 3♥
- nat 6+♥, INV
- 3♠
- to play
- 3NT
- to play
- 4♣ and higher
- control-bids and Kickback for ♠
When 2nd hand interferes
2♦/♥/♠-(X)
- XX
- puppet to 2NT, then pass or new suit nat, GF, w/o support
- suit 2nd lvl
- nat, nF
- 2NT
- ASK
- 3/4 lower suit
- FJ/FNJ
- 3/4 higher suit
- nat INV/to play
2♦/♥/♠-(suit 2nd lvl)
- 2NT
- ask, system on, cue-bid by responder strong
- suit 2nd lvl
- nat, nF
- suit 3rd lvl
- nat INV
- Cue
- GF with trump support and shortness
2♦/♥/♠-(2NT)
- X
- PEN
- 3/4 lower suit
- FJ/FNJ
- 3/4 higher suit
- nat INV/to play
Kickback does not apply directly, do it thru X or 2NT.
When partner opens with a weak two, 4NT direct is BW1430, thru X or 2NT Kickback (even for spades).
When 4th hand interferes
2♦/♥/♠-(P)-2NT-(X)
- XX
- 7+ business, all later X = PEN
- Pass
- Forcing XX, 5-6 bal (sbsq. 3C) or a GF shapely hand which will bid later (3NT = clubs)
- Suit
- 5-6 and distributional
2♦/♥/♠-(P)-2NT-(3♣)
- X
- stolen bid, might be converted to PEN
- rest
- system ON
2♥/♠-(P)-2NT-(3♦)
- Pass
- 5-6
- X
- 7+
Ekren
Played on first, second and third position NV, 4+ 4+ Majors, 5-10K&R
- Pass
- to play (can be a tactical in the absence of a major suit fit, does not guarantee long diamonds)
- 2M
- to play
- 2NT
- ask, 15+
- 3♣
- to play
- 3♦
- 17+ w/both Major 3+carders
- 3M
- to play
- 4M
- to play
2♦-2NT
- 3♣
- 5-8 (not 7-8 both Major 5+ carders) (sbsq. 3♦ is puppet to 3♥ (M s/o) and 3M is nat INV)
- 3♦
- 7-10 both Major 5+carders (sbsq. 3M is nat INV)
- 3♥
- 9-10, 5♥ 4♠
- 3♠
- 9-10, 5♠ 4♥
- 3NT
- 9-10, 4♠ 4♥
2♦-(X)
- XX
- 6+♦, to play
- rest
- system ON
2♦-(2M)
- X
- PEN
- 3m
- nat INV, very offensive
- 2NT
- minors, offensive
- 3M
- nat (even cue)
- 4M
- nat (even cue)
2♦-(p)-p-(X)
- XX
- 3+♦
- pass
- 0-2♦ (sbsq. reopen XX wants opener to bid his better Major)