Editing User:Brian/Bridge/Splinter

==Meaning==
A splinter is:
* a double jump shift by opener's partner, or
* a jump shift by opener following a single raise of opener's suit.

For example, 1&hearts; - 4&clubs; is a splinter by opener's partner. 1&diams; - 1&spades; - 4&hearts; is a splinter by opener.

If partner splintered, alert the bid.

A splinter shows support, a void or small singleton in the splinter suit, and game-forcing strength with slam interest.

A splinter raise of a major shows at least 4-card support. Thus, in the sequence 1&hearts; - 4&clubs;, at least a 9-card heart fit exists, and opener's partner has a void or small singleton in clubs. In the sequence 1&diams; - 1&spades; - 4&hearts;, opener shows exactly 4 spades and a void or small singleton in hearts. (With 5 spades, they would have opened spades rather than a minor).

A splinter raise of a minor shows at least 5-card support.

==Responses==
Evaluate your hand carefully before responding.

I have slam interest &rarr; initiate [[User:Brian/Bridge/Control bidding|control bidding]] or bid 4NT, [[User:Brian/Bridge/Blackwood|Blackwood]]. Note that the splinter has already shown suit agreement, so there is no ambiguity about which suit is trumps.

I don't have slam interest &rarr; Sign off in 4 of your suit. If partner bids again, it is a [[User:Brian/Bridge/Control bidding|control bid]] or [[User:Brian/Bridge/Responding to Blackwood|Blackwood]].