Fragment bid
Read main articles: Bidding system, Bridge convention and Glossary of contract bridge terms
Developed by Monroe Ingberman, a fragment bid is a bidding convention used in the card game contract bridge. It is an unusual jump rebid, usually a double jump, by either the opener or the responder which shows a fit with partner’s suit and shortage, either a singleton or void, in the fourth suit.
Although analogous to splinter bids, fragment bids differ in that they require the naming of a suit held rather than the short suit itself. Partnership agreement is required on the details of either splinter or fragment bids and their continuations.
Examples
Fragment bid by opener
The 4♥ rebid by opener is a fragment bid; it is double jump showing two or three cards in the fragment suit (hearts), a singleton or void in clubs and support for partner's diamond suit.
Fragment bids by responder
The 4♣ bid is a fragment bid showing support for spades and shortness in the unbid suit, diamonds.
When three suits have been bid naturally, a double jump in the fourth suit is a fragment bid. The 4♦ bid shows support for partner's last bid suit (spades) and a singleton in his first suit (clubs).
| North |
South |
| 1♣ |
1♥ |
| 1♠ |
4♦ |
| 4♠ |
5♣ |
If the fragment bidder rebids the suit in which he has promised shortness, he shows a void; in this case in clubs.
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