Strong hand with 6 spades and 4 hearts

Strong hand with 6 spades and 4 hearts

N
W   E
 
S
K Q 8 6 5 4
K Q 7 6
7
A 3

Dealer:

West

W N E S
1NT Pass 2 Pass
2 Pass 3

A strong hand with six spades and four hearts, begins with a transfer to spades and then forces to game by rebidding 3.

Opener assumes you have five cards in the suit you transferred to, and four cards in the second suit. (She doesn't know yet that you have six spades.) She proceeds as follows:

4+ hearts => 4

3+ spades => 4

2 spades and 3 hearts => 3NT

If opener bids 3NT, you convert to 4.