double of splinter bid = sacrifice oriented nv vs v otherwise lead directional for suit below splinter suit

we open bidding (overcall) 3 level jump shift (not defined as conventional) = excellent one suiter eg; 1♠ (2♣) 3♦*

Vs polish club 2♣ = natural 2♦ = Michaels

Vs strong club X = majors 1NT = minors

Vs precision ♦ (short) -2♦ = natural, 2♣ = michaels

Opponent overcalls our NT with 2♦ showing 1 major, then X = cards and pass followed by X = negative

We make a TO X and opponent bids then

X = penalty if their call was a major

X = responsive if their call was a minor

X = suit showing if their call was a transfer

X = responsive if their call was artificial raise

2NT = better minor lebensohl over 2 of their suit or artificial raise

Super accepts of major suit transfers over 2NT are concentration showing (3NT shows concentration in transfer suit )

Handling 1435 and 1453 non reversible minimums

Do not rebid 1NT with small singleton

With singleton honor ok to rebid 1NT

With 1453 rebidding 2♣ on tripleton is acceptable

With 1435 (worst case) rebidding 2♣ on 5 is acceptable with reasonable suit otherwise “guess what to do”

1M (simple overcall) q = limit exactly

2NT = forcing raise in major

responder bids new suit in competition at three level = non forcing