2H/S in 1st and 2nd seats: 6-10 HCP, 6+ card suit
2H/S in 3rd seat: 5-9 HCP, 6+ card suit
2H/S in 4th seat: 10-13 HCP, good 6+ card suit
- 3/4H/S: Pre-empt
- 2S/NT: Asking for second suit or feature
- 3H/S: No second suit, no feature
- 2NT: spades
- Other suit: 4+ suit or feature
- 3NT: AKQxxx
- 2NT/3C: OGUST
- 1st step: Min, bad suit
- 2nd step: Min, good suit
- 3rd step: Max, bad suit
- 4th step: Max, good suit
- 3C/3D: Asking for short suit
- 3H/S: No short suit
- 3S/H: Short spades/ hearts
- 3D: Short diamonds
- 3NT: Short clubs/diamonds
- 4C over 3D: Short clubs
- 3H over 2S: Natural, non-forcing
- 3D over 2H: 6+ spades, forcing to 3H/S only
- 4C/D: 6+ suit, non-forcing
Responses after opponent's DBL
- RDBL: Parking lot
- Pass: To play
- Others: Lead-directing
- Jump shift: Suit bid + fit
- 2NT: OGUST
Responses after opponent's overcall
- DBL: Business
- 3/4H/S: Pre-empt