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2NT Opening


3♣
Muppet Stayman or minor suit(s) S/T
3R
TRF
3♠
CONFI
3NT
to play
4♣
SUPERCONFI
4R
Texas
4♠
kickback for ♣
4NT
kickback for ♦
5m
semiPRE
5M
bid 6 w/A or K or 7 w/both
2NT-3♣
3♦
M4
3♥
no M4+
3♠
5♠
3NT
5♥
2NT-3♣-3♦
3M
4oM
3NT
to play
4♣
GF, 4♠ 4♥
4♦
GF, 5♠ 4♥
4♥
S/T in ♣
4♠
S/T in ♦
4NT
S/T w/5+ 5+ minors
2NT-3♣-3♥
3♠
5♠ 4♥, INV
3NT
to play
4m
S/T with m
4♥
5♠ 4♥, GF, fit 5-2+♠ or 4-3♥ assured, responder worrying about 3NT
4NT
S/T w/5+ 5+ minors
2NT-3R
3R+1
no support or 3M, minimum, sbsq. 4m nat S/T 55 and then 4NT by opener as to play
3R+2
support, non-serious
higher
support, serious control-bid
2NT-3♦-3♥
3♠
4♠ 5♥ GF (w/INV just pass now)
2NT-3♣-3♠
3NT
to play
4♣ thru 5♠
support for ♠
5NT
pick a slam (minors)
6m
to play
2NT-3♣-3NT
4♣ thru 5♠
support for ♥
5NT
pick a slam (minors)
6m
to play
2NT-3R-super accept
4R
retransfer
4R+1
substitution (R) control-bid

Summary

4♠ 4♥ GF 3♣-3♦-4♣ 3♣-3♥-3NT
5♠ 4♥ GF 3♣-3♦-4♦ 3♣-3♥-4♦
5♥ 4♠ GF 3♦-3♥-3♠  
5♥ 4♠ INV 3♦-3♥-pass  
5♠ 4♥ INV 3♣-3♥-3♠ 3♣-3♦-?
now your hand is better (fit found), so just bid 4♦

Scheme also applies after Kokish relay, but not in the 2♣-2♥-2NT sequence