It may be "assigned" (weighted to reflect the probabilities of a number of potential results) or "artificial" (otherwise). An approach to competitive bidding that emphasizes frequent interference with opponents' bidding sequences.Īdjusted score In duplicate bridge, a score awarded by the Director (when empowered by the Laws) in order to redress damage to a non-offending side and to take away any advantage gained by an offending side through an infraction.An approach to defending a hand that emphasizes quickly setting up winners and taking tricks.Acol An approach–forcing, natural bidding system, based on a weak NT and 4-card majors, popular in the United Kingdom and the Commonwealth. Its members are players, grouped in regional districts and local units for some purposes. ACBL American Contract Bridge League, the sport governing body for bridge in North America – defined as Bermuda, Canada, Mexico, and the United States – and the sponsoring organization of North American Bridge Championships (NABC). Points awarded for contract odd tricks bid and made are entered below the line. Rubber Bridge Scoring Above the line In rubber bridge, the location on the scorepad above the main horizontal line where extra points are entered extra points are those awarded for holding honor cards in trumps, for bonuses for scoring game, small slam, grand slam or winning a rubber, for overtricks on the declaring side and for undertricks on the defending side and for fulfilling doubled or redoubled contracts. For example, when a bid is interpreted as "5- 8421 HCP in S", this means the bidder is expected to have 5 or fewer points in spades, counting an ace as 8 points, etc. 8421 Counting points by way of 8421 means counting an ace for 8 points, a king for 4, a queen for 2, and a jack for 1 point. If 2 ♣ is a strong, artificial force, 2 ♥ is natural. 2-under preempts A 2 or 3-level conventional opening bid made two steps below the opener's suit: for example, 2 ♦ to show a weak two bid in spades or 3 ♣ to show a three-level preempt in hearts. It represents "1 or 4" and "3 or 0", meaning that the lowest step response (5 ♣) to the 4NT key card asking bid shows responder has one or four keycards and the next step (5 ♦) shows three or zero. 1430 or 1430 RKCB A mnemonic for a variant response structure to the Roman Key Card Blackwood convention. It represents "3 or 0" and "1 or 4", meaning that the lowest step response (5 ♣) to the 4NT key card asking bid shows responder has three or zero keycards and the next step (5 ♦) shows one or four. 0–9 3014 or 3014 RKCB A mnemonic for the original (Roman) response structure to the Roman Key Card Blackwood convention.
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