Fragment bid
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. 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, 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.| North | South |
| 1 | 1 |
| 1 | 4 |
| North | South |
| 1 | 1 |
| 1 | 4 |
| 4 | 5 |