Reopening double is a form of takeout double bid by the opener himself, after his left-hand opponent has overcalled and partner has passed. As normal takeout double, it shows support for unbid suits.

Conditions:

• auction is bellow 2NT;

• partner has passed;

• RHO has passed;

• no second suit to bid;

• no 7+ card suit;

• not found a fit with partner;

• the number of cards held in the suit of the opponent is two or less.

In the event that the bidder has a significant surplus, he may bid, but with the omission of the double bid, which cannot have any other meaning than reopening. The exception is when the bidder has already countered and his partner can have 0 HCP.

The partner adds:

• • the level of the contract;

  • the number of cards held in the suit of the opponent;

  • the number of honors held in the suit of the opponent (this includes the 10).

Partner:

• • the calculated number is nine or more - the partner should pass for penalty.

  • the calculated number is less than nine - the partner should bid.