Gazzilli

Gazzilli is a convention in constructive bidding to be used in the auctions 1 - 1 and 1/1 - 1NT. The 2 rebid is artificial and includes many strong hands as well as the hands typically included into 2. The version described here is used in combination with the Kaplan Interchange.

1 auctions

The starting point for Gazzilli is the auction 1 - 1NT (forcing). It is assumed that responder bids after 1 with most 5-counts. Opener's 2 rebid either shows a strong hand or is (semi)natural with . The combinations included into 2 are limited by the fact that 2 shows at least three cards. Opener's rebids now are:

1 - 1NT (forcing) - ?

Response	Description	Further bidding
2	a) 11 - 15 HCP, 4+ b) 11 - 15 HCP, 5 3 2 3 c) 16+ HCP any	See below
2	11 - 15 HCP, 3+
2	11 - 15 HCP, 4+
2	11 - 15 HCP, 6+
2NT	13 - 15 HCP, 6+ 4+//
3	13 - 15 HCP, 5+ 5+
3	13 - 15 HCP, 5+ 5+
3	13 - 15 HCP, 5+ 5+
3	13 - 15 HCP, 7+

1 - 1 (4⁺) - ?

Response	Description	Further bidding
1NT	11 - 13 HCP, balanced
2	a) 11 - 15 HCP, 4+ b) 13 - 15 HCP, 3 5 2 3 (when not opened 1NT) c) 16+ HCP any
2	11 - 15 HCP, 4+ or 14 - 16 HCP, 5 3
2	11 - 15 HCP, 6+
2	11 - 15 FP, 4+
2NT	13 - 15 HCP, 6+ 4+/
3	13 - 15 HCP, 5+ 5+
3	13 - 15 HCP, 5+ 5+
3	13 - 15 HCP, 7+
3	16 - 18 FP, 3+

Playing a semiforcing 1NT response (for example with a passed hand):

1 - 1NT - ?

Response	Description	Further bidding
Pass	11 - 13 HCP, balanced or 5 4
2	a) 11 - 15 HCP, 4+ b) 13 - 15 HCP, 3 5 2 3 / 4 5 2 2 / 4 5 1 3 c) 16+ HCP any
2	11 - 15 HCP, 4+ or 14 - 16 HCP, 5 3
2	11 - 15 HCP, 6+
2	13 - 15 FP, 6+ 4+
2NT	13 - 15 HCP, 6+ 4+/
3	13 - 15 HCP, 5+ 5+
3	13 - 15 HCP, 5+ 5+
3	13 - 15 HCP, 7+

After the artificial 2 rebid, responder limits his hand:

1 - 1NT - 2 - ?

Response	Description	Further bidding
2	8+ HCP, any distribution (GF opposite the strong variation)	See below
2	5 - 7 HCP, 6+
2	5 - 7 HCP, usually 2+
2NT	5 - 7 HCP, short , 4+
3	5 - 7 HCP, 6+
3	5 - 7 HCP, 6+

1 - 1NT - 2 - 2 - ?

Response	Description	Further bidding
2	17+ HCP, 5 + 4// or 5 3	2 asks
2	11 - 15 HCP
2NT	16+ HCP, 6 + 4//
3	16+ HCP, 5+ 5+
3	16+ HCP, 5+ 5+
3	16+ HCP, 5+ 5+
3	16+ HCP, 6+
3NT	16 - 18 HCP, 5 2 3 3

1 - 1NT - 2 - 2 - 2 - 2 - ?

Response	Description
2NT	16+ HCP, 5 3 3 2
3	16+ HCP, 5 4
3	16+ HCP, 5 4
3	16+ HCP, 5 4