Checkback

Checkback (pro) occurs in sequence: 1m–1M-1NT–2♣ and guarantees five and 11+ HCP or four and 14+ HCP.

Responder bids:

  • 2♢ -no support 12- HCP;
  • 2 in partner's suit - support 12- HCP,;
  • 2 in the second major - support 13-14 HCP;
  • 2BA - 13-14 HCP no support.

After the intervention of the opponents, the balance bid.