For interested Bridge Players, who would like to learn the Acol Bidding System, we have tried to accumulate sufficient material regarding the Acol Bidding System. As with all Bidding Systems, there are modifications, different approaches, even conventions devised and borrowed, and we have included these for the edification of our visitors and for the curious. Any contributions to this list will be greatly appreciated.

Acol System Notes - The visitor finds access via 'Map' in the menu, top left.
This is a must read for any bridge player wishing to understand the guidelines of the Acol Bidding System. Dr. Chris Ryall has made notes on the general structure of the Acol style which he suggests is somewhat more relaxed than North American methods. These System Notes are designed for those who already know the basic principles of bidding and hand evaluation, but wish to play in an Acol partnership in say an online environment. The distinction between Acol and Benjaminised Acol is explained, and common variants seen in Britain are mentioned.

Standard English Acol - Full System File
This is an online draft of the Standard English Acol bidding system as of July 2005 compiled by several members of the original Bridge for All drafting team: Sandra Landy, Mike Pomfrey, Jean Patefield and Simon Ainger. This draft does not indicate an endorsement of the English Bridge Union. This is a .pdf file and will automatically be opened by your browser.

Acol Bidding System
In keeping with the policy of courtesy, we have decided to include the Basic Guidelines of this Bidding System mostly used by our British bridge players. We have tried our best to present and represent this System, but we know that we can not accomplish this on a grander scale. We hope, however, that we have done our readers a certain service in acquainting them with the Acol System. We wish to give them that choice.

Acol Bidding System
This is a comprehensive bidding system for the Acol System devised by Mr. George Jesner. Many of the features have to be memorized. Since it is so extensive, it is suggested that the interested bridge player take the time to discover the logic and reasoning behind this bidding system.

Acol Two-Bid
The Acol Two-Bid is an intermediate bid and is forcing for one-round, because it represents a strong and forcing bid. Includes the definition of the Herbert Negative Bid.

Acol General Structure
For those bridge players being introduced for the first time to the Acol System, this would be a starting point to learn the basic structure.

Acol according to Lewis and Hancock
A summary, written in 1987, of the Acol Bidding System devised and played by Mr. Hancock and Mr. Lewis. First names unknown and would be appreciated. This is written in a .pdf file format, and, depending on your browser, will either be automatically opened by your browser or automatically downloaded to your computer and opened with Adobe Acrobat Reader.

Baron System
Note: Under construction. A part of the Acol System, and yet a system that stands on its own merits.

Flint
A feature of the Acol System after a 2 No Trump opening bid.

Acol 4 No Trump
This is a special and specialized opening bid, which asks partner directly how many Aces he holds. As you might suspect, the opener already has enough Playing Tricks for a slam, and is looking for the grand slam.

Acol Leads and Signals
As in all Bidding Systems, the lead can give useful information to the partner, as can the first discard.

Opener's Rebids
General Guidelines for the opener and several for the responder.

Crowhurst
A feature of the Acol system which deals with the rebid of 1 No Trump by the opener.

Swine
The term Swine is an acronym for Sebesfi-Woods-1-Notrump-Escape.

If you wish to include this feature, or any other feature, of the game of bridge in your partnership agreement, then please make certain that the concept is understood by both partners. Be aware whether or not the feature is alertable or not and whether an announcement should or must be made. Check with the governing body and/or the bridge district and/or the bridge unit prior to the game to establish the guidelines applied. Please include the particular feature on your convention card in order that your opponents are also aware of this feature during the bidding process, since this information must be made known to them according to the Laws of Duplicate Contract Bridge. We do not always include the procedure regarding Alerts and/or Announcements, since these regulations are changed and revised during time by the governing body. It is our intention only to present the information as concisely and as accurately as possible.

Claus and Raymond

Conventions

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