Stayman promises at least invitational values. Bid hearts first. With 5-5 majors bust transfer and give up.

1N 2C 2D 2H=45xy invitational

1N 2C 2D 2S=54xy invitational

1N 2C 2D 2N=invitational

1N 2C 2D 3C,3D=natural force

1N 2C 2D 3H,3S=smolen

1N 2C 2D 3N=natural

1N 2C 2D 4C= pick a major

1N 2C 2D 4D=Texas

1N 2C 2D 4H=Texas

1N 2C 2D 4S=

1N 2C 2D 4N=quantitative

1N 2C 2D 5N=quantitative

1N 2C 2H 2S=invitational

1N 2C 2H 2N=invitational

1N 2C 2H 3C,3D=force

1N 2C 2H 3H=invitational

1N 2C 2H 3S=H force. Opener may bid 3NT with desire to play there or bid at 4 level with H preference

Responders jump to 5S = modified GSF

1N 2C 2H 3N=natural

1N 2C 2H 4C=

1N 2C 2H 4D=

1N 2C 2H 4H=natural

1N 2C 2H 4S=

1N 2C 2H 4N=quantitative

1N 2C 2H 5C,5D

1N 2C 2H 5S

1N 2C 2H 5N=quantitative

1N 2C 2S 2N=natural

1N 2C 2S 3C,3D=force

1N 2C 2S 3H=S force. Opener may bid 3NT with desire to play there or bid at 4 level with S preference

Responders jump to 5N = modified GSF

1N 2C 2S 3S=invitational

1N 2C 2S 3N=natural

1N 2C 2S 4C=

1N 2C 2S 4D=

1N 2C 2S 4H=

1N 2C 2S 4N=quantitative

1N 2C 2S 5C,5D,5H=

1N 2C 2S 5N=quantitative

*You must have a quality NT for the following:

1N 2C 2N shows 45 NT(not S) 3C asks then 3D=2245, 3H=2254, 3S=2425, 3N=2452

1N 2C 3C 5 card suit Smolen on at this point

1N 2C 3D 5 card suit Smolen on at this point

1N 2C 3H 5 card suit

1N 2C 3S 5 card suit

1N 2C 3N max texture 3343 or 3334 NT, res can use 4 suit transfer at 4 level