Spade Heart The Bridge Club of Chiang Mai Diamond Club
Important Notice

No Learner's Table May 21 and 28, 2018.

Please Note

Artificial bidding systems are now permitted on Wednesdays, Fridays and Sundays. However, a Club Member may question the use of an artificial system and request that a decision to allow it or not be made by the Committee. Furthermore, those using artificial systems must provide a viable defense against their system.

Posted 1 May 2018

 

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Fri 25th May 2018
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Oak Tree 13.15
Mon 28th May 2018
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BCCM Alerts System
Allowable Bids

Artificial bidding systems are now permitted on Wednesdays, Fridays and Sundays. However, a Club Member may question the use of an artificial system and request that a decision to allow it or not be made by the Committee. Furthermore, those using artificial systems must provide a viable defense against their system.

BCCM New ALERTS System

Alerts System for BCCM

The following is based on the ACBL alerts system, but simplified to reflect the fact that most BCCM  players play similar systems to each other. The aim is to reduce the frequency of required alerts, while still keeping opponents informed of hidden meanings. This alert system is intended for those playing Standard American, Acol or similar systems.

If you are playing something outside these systems (eg. Precision, very light openings etc.), please make sure you alert if the bid has an unexpected meaning. Don’t forget that you can always ask the meaning of an opponent’s bid at any point in the game whenever it is your turn to bid or play.

General

To alert, please say the word “alert” so the opponents can hear it. You may also use the alert card if you wish. 

No doubles or redoubles require alerting---opponents should besufficiently alert to notice a double or redouble and ask the meaning if necessary.

No cuebids of a suit naturally bid by opponents require alerting. Again, opponents should notice these.

A 2♣  opening which is very strong and artificial is not alertable (a natural 2♣  opening or a 2♣  opening which is agreed to be of lesser strength would be alertable).

An Unusual 2NT jump overcall is not alertable (a natural 2NT jump overcall would be alertable).

For alerts marked with an asterisk, you can either alert when the bid comes up or you can pre-alert. If you pre-alert then you should state what your system isat the beginning of every round. For example, if your 1♣  bid may be short, then you have the choice of stating this before looking at your cards for the first board of the round or, if you prefer, just alerting each 1♣  opening by your partner.

Transfers

All transfers should be announced. If your partner makes a transfer bid, then say “transfer”. Unless asked, do not explain what it is a transfer to.

Opening Suit Bids at the One Level

  • *Alert if suit bid may be fewer than five of a major or fewer than three of a minor.
  • *Alert if one of a minor guarantees a five card suit.
  • Alert if artificial (eg. shows hand strength rather than suit).

Responses to Opening Bids of One of a Suit

  • Alert forcing or semi-forcing 1NT responses.
  • Alert non-forcing jump shifts whether or not in competition.
  • Alert splinters.
  • Alert Jacoby 2NT (or similar system) and responses.

Opener’s and Responder’s Rebid

  • Alert opener’s 1NT rebid if strong (greater than 14 HCP).
  • Alert conventional 3rd or 4th suit bids (eg. new minor forcing, fourth suit forcing).
  • Alert help suit game tries.

NT Opening Bids or Overcalls

Alert if agreed range is outside the following:

*1NT opening:     15-17 HCP

1NT overcall:    15-18 HCP 

1NT overcall in balancing seat: 11-14 HCP

2NT opening:    20-21 HCP

3NT opening:    25-27 HCP

Responses to NT

  • Announce all transfers.
  • Alert minor suit stayman and responses.
  • Alert puppet stayman responses and continuations.

Overcall over a NT bid

Alert unless fully natural (eg. a 2  bid overcall after 1NT which shows hearts is not alertable. If your agreement is that it shows both hearts and another suit, it is alertable).

Responses to NT bids after Interference

Announce all transfers.

Alert other bids which are not fully natural, except for doubles or a cuebid of opponent’s suit.

Opening Suit Bids at the Two Level and Responses

Alert responses to strong, artificial 2♣, unless natural.

Alert 2♠ , 2  and 2  opening bids which are not weak.

Alert rebids after a 2NT response to a weak two (eg. Ogust, feature etc.) 

Note that a 2NT asking bid itself is not alertable, just the responses.

Bids Above 3NT

Alert all artificial bids above 3NT, except:

  • regular (not keycard) Blackwood and its responses.
  • transfers, which should be announced rather than alerted.

Leading Low from a Small Doubleton

If your system includes leading low from a small doubleton, this is subject to a pre-alert (see above for how to pre-alert).