Responses

2. Responses and simple continuations:

2.1. General:
Preemptive hands: raise 3/4 of major, raise 2NT of minor(2 way: very preemptive or GF)

Non INV+ hands: 1/1(1C xfers), 1NT(limited less than INV), 2C(5+S-4+H to 1 of minor and 5+ unbid major to 1 of major), raise to 2 of major(limited).

INV+ hands: 2D/H/S(xfer 5+H/S/6+unbid minor) to 1 of minor; 2D to 1 of M(deny other bid), 2 of unbid major(6+C), 3D(NAT limited GOOD), 2NT(FIT) to 1 of major.

GF hands: 2NT(FIT, 2 way: very preemptive or GF), 3D(1C)/H/S XFER SPL, 3NT, 3C( to 1D) to 1 of minor; 3C(6+D), 3NT/4C/D XFER SPL, 3 other major(5+C-5+D) to 1 of major.

2.2. 1C - ?:
1D/H: 1+Re, 4+H/S xfer
1S: 2+Re, 3-H/S (include 2Re 6+C)
1NT: 3URe, 3-H/S, NF
2C: 2+Re, 5+S-4+H
2D/H/S: 3+Re. 5+H/S/6+D
2NT: 1Re/1Op+, 6+C, PRE/GF
3C: 3Re, 6+C, INV
3D/H/S: 1Op, 6+C, XFER SPL
3NT: 1Op, to play
4C/D: 2-3Re, 7+H/S, 2+C
4H/S: 2-3Re, 7+H/S, 1-C
4NT: BW

2.3. 1D - ?:
1H/S: 2+Re, 4+H/S
1NT: 1-3LRe, 3-H/S, NF
2C: 1+Re, 5+S-4+H
2D/H/S: 3+Re. 5+H/S/6+C
2NT: 1Re/1Op+, 4+D, PRE/GF
3C: 1Op+, 3-H/S, GF
3D: 3Re, 3+FIT, 3-H/S, INV
3H/S: 1Op, 4+D, XFER SPL (3S=0-1H)
3NT: 1Op, to play
4C/D: 2-3Re, 7+H/S, 2+C
4H/S: 2-3Re, 7+H/S, 1-C
4NT: BW

Discussion:
Why so many cheap bids for majors?
-> With majors respoder is under pressure of possibility of major game with few points. Cheap major bids allow to check this possibility without overbidding. Of course you need to pay the cost, using unsuitable high bids for minors, but such problematic hands are rare enough.

2.4. 1H/S - ?:
1S: 2+Re, 4+S
1NT: 2Re-3LRe, NF, can have FIT
2C: 2+Re, 5+unbid major
2D: 3+Re, deny 5+unbid major, FIT and 6+ GOOD minor
raise: 3Re, FIT
2 unbid major: 3Re+, 6+C, GOOD, INV+ or 1Op+, 5+C,GF, deny FIT
2NT: 3Re+, FIT, INV+
3C: 1+Op, 6+D, GF
3D: 3Re, 6+D, GOOD, INV
jump raise: 1-2Re, 4 FIT, PRE
3 unbid major: 1Op+, 5+C-5+D, GF
3NT/4C/D: 1Op, XFER SPL, GF
game-raise: 1-2Re, 4+FIT, PRE
4NT: RKCB
5C/5D/5H(1S)/5S(1H): 4+FIT, Void in bid suit, ERKCB

Discussion:
-> Why not mini-SPL's or fit-showing jump shifts?
So as not to give info to the OPP, before it is certain we need it ourselves! Pd can still continue with a GTRY, but can also pass or bid game, giving less information to OPP's.

2.5. 1NT(2Op)- ?:
2C: 1+Re, Stayman, guarantee 4 major
2D/H: 1+Re, 4+H/S, xfer
2S: 1Re+, 5+C-5+D or 3Re, 3-H/S, INV or 1Op, 3-H/S,at least one weak major, GF
2NT: 1+Re, 6+C
3C: 1+Re, 6+D
3D: 1+Op, 4+H-4+S, GF
3H/S: 1+Op, SING/VOID H/S, deny 4 major, GF
3NT: 1+Op, to play
4C/D: 1+Op, 6+H/S, SING/VOID in other major, STRY
4H/S: 3Re, 6+H/S, to play
4NT: BW

Discussion:
Why 4 cards major xfers?
-> They give you possibility to use them instead of 2C Stayman, when you afraid of lead directing double to it. They also allow NF rebids of Stayman at 3 level of minor.

2.6. 2C- ?(similar to 1NT):
2D/H: 1+Re, 4+H/S, xfer. Note 2D include sign off at 2/3NT and can be without 4+H.
2S: 1Re+, 5+C-5+D or 2Re, 3-H/S, INV+ or 3Re, 3-H/S,at least one weak major, GF
2NT: 1+Re, 6+C
3C: 1+Re, 6+D
3D: 2+Re, 4+H-4+S, GF
3H/S: 3+Re, SING/VOID H/S, deny 4 major, GF
3NT: 3Re, to play
4C/D: 3+Re, 6+H/S, SING/VOID in other major, STRY
4H/S: 1-2Re, 6+H/S, to play
4NT: BW

2.7. 2D- ?:
2H/S: 1-3Re, Sign off
2NT: 1-3Re, 6+C/D, SO or 1Op+, GF without FIT
3C/D: 1Op+, 4+H/3+S, INV+
3H/S: 1-3Re, 4+H/3+S, PRE
3NT: 1-2Op, to play
4C/D: 1Op+, 4+H/S, SING/VOID in other major, STRY
4H/S: 1-3Re, 4+H/3+S, PRE
4NT: BW

2.8. 2H/S- ?:
2S: P/C
3C(2H): 1Op+, 5+S, INV+
3C(2S): P/C
3D(2H): 1Op+, 3+FIT, INV+
3D(2S): 1Op+, 5+H, INV+
2NT: 1-3Re, 6+C/D, SO or 1Op+, GF without FIT
raise/jump raise: 1-3Re, PRE
jump in unbid suit: 1-3 Re, P/C, PRE
3NT: 1-2Op, to play
4NT: BW

2.9. 2NT/3C/D/H ?:
accept xfer: 1-3Re, SO
unbid suit: 1+Op, stopper or better, above 3NT cue or better, GF. Rebidding of suit is NAT and NF.
Jump in a new suit: Void in bid suit, ERKCB
4NT: RKCB

2.10. 3S(gambling but could be a solid major too)- ?:
3NT: 1-2Op, to play
4C: 1-3Re, P/C
4D: 1+Op, REL for Sing/Void, STRY
4H/S: 1-2Op, 6+H/S, to play
4NT: 1+Op, REL for quality and length

2.11. 4C/D- ?:
4D/H: 1+Op, STRY
accept xfer: 1-3Re, SO
above: 1+Op,cue

2.12. 4H/S- ?:
cue