Official ACBL defenses must be provided when possible. These methods, based on #3 of the Opening Bids section of the Open Chart and on #3 or #7 of the Opening Bids section of the Open+ Chart, require both a pre-alert and a written defense, including a separate copy of that defense for each opponent. Two classes of methods are particularly difficult to defend against, and these methods are allowed only in events governed by the Open+ Chart, and then only in segments of six boards or longer. The Basic and Basic+ Charts are recommended for masterpoint restricted games at clubs. Particularly advanced clubs may prefer to use the Open+ Chart, while clubs that mainly cater to newer players may prefer the Basic+ Chart. The Open Chart is recommended for most open club games.

In all types of events, when the directors allow a team to play in a higher bracket than its masterpoint holding would qualify the team for, that team’s masterpoint total is ignored in determining which Chart applies.

Open+ Chart: Top bracket (regardless of team masterpoint holdings), and any other bracket where the lowest team averages more than 3000 masterpoints per player.

Basic+ Chart: Any bracket where the highest team averages 751 to 1500 masterpoints per player.

Basic Chart: Any bracket where the highest team averages less than 750 masterpoints per player.

Nationally Rated Events: applies in any NABC event with no masterpoint limit, and any NABC event with an upper masterpoint limit above 6000.Ī single bracket event always uses the Open Chart.įor bracketed events with more than one bracket, the Open Chart is used in most brackets with these exceptions:.

applies in any 2-session event with no masterpoint limit as long as there is a 2-session event of the same type with a masterpoint limit on the same day.

applies in any 3+-session event with no masterpoint limit.

Nationally Rated Events: applies in any NABC event with an upper masterpoint limit between 30.

applies in any 2-session event with no masterpoint limit if there is no 2-session event of the same type with a masterpoint limit on the same day.

applies in any restricted event with a masterpoint limit above 3000.

applies in any 1-session event with no masterpoint limit (includes Side Series).

At a Regional (including regional events at an NABC):.

At a Sectional: applies in any event with no masterpoint limit, and any event with a masterpoint limit above 3000.

Basic+ Chart: Applies in any event where the upper limit per player is 3000.

Basic Chart: Applies in any event where the upper limit per player is 750 or less.

Pair Events and non-Bracketed Team Events Basic Chart Basic+ Chart Open Chart Open+ Chart Any Definition or Chart Rule marked with three asterisks (***) has 1 or more examples in the Example section. Both the Definitions and the Examples should be included with the Charts. Any word that is capitalized on a Chart is included in the Definitions section.Īn Examples section follows the Charts for cases where a rule might be ambiguous. In contrast to the Basic and Basic+ Charts, methods are generally allowed unless they are expressly prohibited within the Chart.Ī comprehensive Definitions section is included in addition to the Charts. The Open and Open+ Charts are intended for events with no masterpoint limits (or high limits). These Charts are written in manner similar to the old charts - by listing permitted methods. The Basic and Basic+ Charts are intended for limited master point events. The four new convention charts are listed in order from least to most permissive: the Basic Chart, Basic+ Chart, Open Chart, and Open+ Chart.

Acbl convention card program