Fighting Irish 2D (Two Diamonds)

The Fighting Irish 2 is an artificial preemptive opening that shows 5-10 HCP with 4-4 or 4-3 (!) in the majors. It can be useful at matchpoint pairs at equal or favorable vulnerability. Perversely, it sometimes preempts the opponents out of their own major-suit fit. Some examples:

A987 KT84 4 J742

QJT3 K832 96 754

QJ83 AK5 98765 2

This convention qualifies as a Brown Sticker Convention under WBF policy: "Any 'weak' two-suited bids at the two or three level that may by agreement be made with three cards or fewer in one of the suits." In ACBL events, it is a Superchart convention.

Response	Meaning
2	Signoff.
2	Signoff.
2NT	Natural, invitational. Opener may correct to 3 with 4-4-0-5 or 3 with 4-4-5-0 shape.
3	Natural, 6+ clubs, non-forcing.
3	Strong, artificial inquiry of opener's distribution (see below).
3	Weak, preemptive.
3	Weak, preemptive.
3NT	To play.

After the artificial 3 response, hand patterns are shown as follows.

Opener's Rebid	Meaning
3	3-4 in the majors.
3	4-3 in the majors.
3NT	4-4 in the majors, no void.
4	4-4-0-5 shape.
4	4-4-5-0 shape.

Fighting Irish 2 were invented by New Zealander Neill Currie.