Previous bidding:

minimum

extra

maximum

(6)7+♥

all hands

~11-15 HCP (2.75-3.75 HT)

any

any

any

NT preference

NT preference

NT preference

~11-16 HCP (2.75-4 HT)

~17-18 HCP (4.25-4.5 HT)

~19+ HCP (4.75+ HT)

6+♦

6+♦

6+♦

suit preference

suit preference

suit preference

~11-13 HCP (2.75-3.25 HT)

~14-16 HCP (3.5-4 HT)

~17+ HCP (4.25+ HT)

6+♣

6+♣

6+♣

suit preference

suit preference

suit preference

~11-13 HCP (2.75-3.25HT)

~14-16 HCP (3.5-4 HT)

~17+ HCP (4.25+ HT)

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