This blog provides supplementary thoughts and ideas to the site. If you haven't seen the main site, there is a lot there including the Martel and Rodwell interviews, photos, and articles. This blog is focused on advancing bridge theory by discussing the application of new ideas. All original content is copyright 2009 Glen Ashton.

Tuesday, October 09, 2007

Some pairs on the Netherlands team in the Bermuda Bowl semi-finals use the BOLO defense to could-be-short minor suit openings by the opponents.

In preparing some notes for the event, I took over a week to come up with Hands Bolo "use the force" - the Star Wars defense to the Netherlands BOLO method. Key was to make the method relatively straight-forward while covering hand types wanting to bid.

The main problem bids in BOLO were the two-way 1m-1S and 1m-3H overcalls.

1m-1S shows either 5 or longer Hs OR weak with 4Ss and a longer minor. The problem here was how to introduce hands with either of the majors.

1m-3H was a preempt in either major. The problem here was how to investigate major suit fits, albeit narrowly, while staying below 3NT.

Here's what I came up with:

After 1m-1H, where 1H shows Spades or 4Hs+minor:
Double=4+Hs (as if you have shown Hs in your methods) - may also have 4Ss
1S=4+Ss (as if you have shown Ss in your methods)
Rest: as if the opponents had overcalled a natural 1S - so NT bids have S stoppers!

After 1m-1S, where 1S shows Hearts or 4Ss+minor - this is the tricky one:
Double=4+Ss (as if you have shown Ss in your methods)
1NT: 7 to 10 and no other good bid - may have 4Hs! - 2D now asks for description with 2S showing no H stopper
2C: Hearts, 4+Hs, forcing - if has 5+Hs then game forcing values.
-- Over 2C, 2S is a cuebid and establishes game force, 2D is waiting, non-forcing.
-- After 2C-2D(waiting), 2H shows 5+Hs game force, 2S shows 4Hs, game force, 2NT and 3m non-forcing.
2D: Diamonds, game invite or better.
2H: 5+Hs, game invite or less values, non-forcing.
2S: Clubs, game invite or better.
2NT: Game invite, somewhat balanced, no four card major, has H stopper.
3m: Long minor, less than game invite values.
3NT: To play, no four card major, has H stopper.

After 1m-2/3H, where 2H/3H shows long Hs or long Ss - this is the other tricky one:
Double=4+Hs OR 4Ss. Opener passes if 4+Hs, or bids cheapest S bid, forcing, to ask for 4Ss.
Cheapest H bid: Short Hs, may have 4Ss, game forcing.
Rest: as if the opponents overcalled natural long Hs.

Later auctions that involve "Pass or Correct" by advancer:
If advancer (partner of overcaller) makes a "pass or correct" bid, doubles by opener shows values and no other good bid - this is passable with length. Doubles by responder are penalty.