1N- 2♣
2♦- 2♥ = crawling stayman
2♠
= invitational distributional playable only in ♠ (also 1N - 2♣ - 2♥ -2♠*)
4♣ =
quantitative with major and 4 card minor
4♦, 4♥ = texas
1N- 2♣
2M- 3 other major = force
relay asks shortness void step first
4♣
= balanced slam try in opener’s major
4♦
= ♣ + other major
4 other
major = ♦ + major
1N 4N = 3343
or 3334
1N 4♠ = 44 minors