1NT (X)
.. XX: To play, FORCING TO 2H next X T/O
.. Jumps: Nat 6+ moderate suit, Weak. After a mini NT (X), running to the 3 level is great.
.. 2NT: both minors? (or GF 2-suited)
.. Pass: Running. Opener to bid a 5c suit, or XX, then bid lowest playable contract.
.. Bids: To play*

1NT (X) 2BID “To Play while undoubled”
…………. Can be any 1- 2- or 3- suited hand (usually not 0- suited hand, start with pass)
…………. If Responder bids a new suit it is “To Play while undoubled”
…………. If Responder Redoubles, it is rescue
eg.
1NT (X) 2C “to play if undoubled” (X)
P (P) 2D “to play if undoubled” (X)
P (P) XX - Rescue, suggests Both Majors, Opener to cooperate

If Responder XX'd the 2C X it would imply 2- or 3- suits, not Clubs.

1NT (2any)
.. If their bid is NAT:
.. X = T/O, non GF, next X PEN
.. Note, X tends to show at least 2 cards in their suit
.. If ART: X = Values (INV+) FORCING TO 2H, next X T/O
.. 2any Nat, NF
.. 2NT Tfr C
.. Transfers from 2NT up to their suit.
.. Tfr to their suit = Stayman. Usually shows 4oM, hand not suited for other actions
.. 3S: Tfr to 3NT, doesn't really show or deny stopper, but happy
.. 3NT to play, doesn't really show or deny stopper, but happy
.. 4m TEXAS ON through overcalls. Tfr to M
.. 4M to play

1NT (2NT minors)
.. X = Values INV+, next X T/O
.. 3m = Major F
.. 3M = non F
.. 3NT to play
.. 4m Tfr to M # how to 'pick a M'

1NT (3C or 3D)
Maximum Tfr/Inversions

1NT (3C)
.. X T/O
.. 3D/3H/3S Tfr to H/S/D
.. 3NT to play
.. 4C = Both Majors
.. 4m?? #

1NT (3D)
.. X T/O
.. 3H = 5+S, INV+
.. 3S = 5+H, GF

1NT (4level+)
.. X = T/O, Values
.. 4NT any 2 suits (or WEAK with H)
.. 5H = some values.

1NT (5m) asking for Aces,
.. X = 2+ Aces

1NT (P) P (X)
XX suggests good Clubs usually 5, can be 4 good ones
Opener can bid a long minor, but usually passes to let responder join in.

1NT (P) P (X)
P (P) ??
……… 2C/D usually 5+ cards (possibly “not that suit” if they later XX)
……… XX running, 0-, or 2+ suits (Opener bid bid a 5or lowest 4)

1NT (P) 2C* (X)
.. XX: Great Clubs
.. Pass: No C Stoper
…… (Then XX kickstarts Stayman)
…… (2D/H/S: Weak)
.. Answering Stayman suggests a stopper

1NT (P) 2C* (bid)
.. X = T/O, we need to be careful
.. Pass: mostly

1NT (P) 2C* (X)
.. We DON'T play “shows/deny a stopper” Over a mini NT
.. Pass No 4card Major, and suggests Some Clubs
.. 2D No 4card Major, and usually Some Diamonds

.. Answering Stayman after a Strong 1NT suggests a Club stopper
.. In that case, Pass is no stopper, and Responder can XX to re-Stayman
.. If Responder bids at the 2-level it is typically garbage

1NT (P) 2D* (X)
.. Accept usually 3 cards, willing to compete
.. Pass, usually 0-2 cards, Then XX is ReTransfer
.. XX Great D, not 4 Hearts
.. 3M Superaccept, more aggressively in contested auction
.. we don't use Step = superaccept

1NT (P) 2D* (bid)
.. 3M competive, usually 4 cards
.. X don't use this…
.. Pass: good choice
……. (Then X by Tfrer is T/O)