Gazzilli occurs when the auction starts 1M-1NT or 1♥-1♠. Opener rebid:

• • 2♣ - 16+HCP, any shape;

  • 2♣ - 11+HCP, 5M and 4+♣.

Responder rebid:

• • 2♦ - 8+ HCP;

Weak opener options:

• • • • • • 2M - 11-15 HCP, 5=M i 4♣;

Any other bid shows 16+HCP.

• • any other bid shows less than 8 HCP and is natural. In this case a preference should be given to a doubleton Major support.

Other opener rebids:

• • 2♦ - 11-15 HCP, 3+♦;

  • 2M - 11-15 HCP, 6=M;

  • 2NT - 14-15 HCP, 5=M, 4+♣;

  • 3♣ - 14-15 HCP, 5=M, 5+♣;

  • 3♦ - 14-15 HCP, 5=M, 5+♦;

  • 3M - 15+HCP, 6=M;

  • 4M - 11+HCP, 7+M.

Using Gazzilla you don't need to open 1NT with the major five.

After the intervention, the convention is off.

Test results.