Bidding system designed by computer

[lolocowboy]

I channeled a Fortran 4 PC program and came up with a bidding system that is non-variable in available bids, based on a dealt 4-3-3-3 probability distribution. Basically if you have xxxx-Kxx-Kxx-Kxx, you would open 1 of the lowest biddable available suit. This hand has 4 QTs.

 

You ignore all opponent bids. You just bid if you have the QTs at an available level.

 

You MUST bid at the 1 level if you have 4 or more QTs and you're opening the auction. But if you have 4 QTs and opponent bids 1 NT, your only available bid is double, and only if you have a QT in each of 4 suits. The double bid is not optional.

 

Once biddable suits: singleton ace, Ax, Axx, Kx, Kxx, Qxx, Jxxx, xxxx

 

Twice biddable suits: Axxx, Kxxx, Qxxx, Jxxxx, xxxxx

 

Biddable levels in case opponent bids 1 NT and you don't have at least 1 QT in each suit but you have more than 4 QTs: 5 QTs level 2, 6 QTs level 3, etc.

 

At the end of bidding, you and partner should pretty much know your suit distributions and lengths (and so should opponents if they know the system).

 

Since I'm a pretty novice player, Does this make partial sense? There are about 4 or 5 more rules for bidding, and that's it. All bids are mandatory for suit and level.

[Vampyr]

That's an interesting idea. It seems like a lot of work and would be a good similarity measure, but it still doesn't tell you if one set of opening bids is "better" than another. Any ideas on that front?

 

I'm still working on Silent Spade and it's making some good progress. Once I got it over the hump of never opening up with higher bids, it's now taking off on its own. It's slowly refining itself each day and hasn't peaked yet. Here is the current iteration (the spades aren't so silent anymore):

 

Pass –0-9 HCP, 3-5 spades, 1-5 in other suits OR 10+HCP, 4-5 spades, 1-4 clubs, 1-5 in reds but no 4441 shapes.

1♣ – 0-12 balanced with 2 spades or 10+ balanced with 3 spades

1♦ –any 5-4 or 5-5 hand that isn't passed, or 10+ HCP any 4441

1♥ – any hand with 5+ hearts that can’t open 1♦/2♣

1♠ – any hand with 6+ clubs that can't open 2N/3♣

1N – any with 6+ spades, 0-4 clubs

2♣ – any with 6+ hearts, 4-5 clubs

Higher bids are all distributional 1- or 2- suiters with no HCP dependence

 

The computer doesn't like the 1♣ definition that much, so it seems that the room for improvement will come from there.

 

Tysen

 

The trouble with this is that the pass will be illegal,in all jurisdictions except (possibly) the local club.

 

 

I channeled a Fortran 4 PC program and came up with a bidding system that is non-variable in available bids, based on a dealt 4-3-3-3 probability distribution. Basically if you have xxxx-Kxx-Kxx-Kxx, you would open 1 of the lowest biddable available suit. This hand has 4 QTs.

 

This hand has 1.5 QTs if you want to be generous and count the kings as 1/2 QT each. How did you manage to come up with 4?

 

Also I am not sure what you mean by "biddable suits" since your most of your once biddable suits would not be bid at all.

[Trick13]

Since this thread has been necroed:

 

Deep Learning found transfer openings: https://arxiv.org/pdf/1607.03290.pdf

 

 

Pass 0-10 HCP

1♣ 11+ HCP

1♦ 10+ HCP, 5+♥

1♥ 12+ HCP, 5+♠

1♠ 16+HCP

1NT 12+ HCP, 6+♦

2♣ Not used

2♦ Not used

2♥ 18+ HCP, 5-6♠

2♠ Not used

2NT 15-17 HCP, 6+♠

[Vampyr]

Since this thread has been necroed:

 

Deep Learning found transfer openings: https://arxiv.org/pdf/1607.03290.pdf

 

 

Pass 0-10 HCP

1♣ 11+ HCP

1♦ 10+ HCP, 5+♥

1♥ 12+ HCP, 5+♠

1♠ 16+HCP

1NT 12+ HCP, 6+♦

2♣ Not used

2♦ Not used

2♥ 18+ HCP, 5-6♠

2♠ Not used

2NT 15-17 HCP, 6+♠

 

Wow, super weird. I love the "not used" openings. They could at least use 2♣, 2♦ and 2♥ as transfer preempts. Or use 2♣ as natural and intermediate. Well, there are more holes in the system but this is a start.

 

Unfortunately transfer openings are not allowed in the EBU. A survey was taken, presumably distributed only to the people who had complained about them. I hope the L&E will reconsider. And I hope that in other jurisdictions, you don't share our fate and are allowed to use transfer openings.

[Zelandakh]

Unfortunately transfer openings are not allowed in the EBU. A survey was taken, presumably distributed only to the people who had complained about them. I hope the L&E will reconsider. And I hope that in other jurisdictions, you don't share our fate and are allowed to use transfer openings.

Back when they were first considered the EBU stated that they had no problem with transfer 1♦ and 1♥ openings but were unwilling to countenance a 1♠ transfer opening (for a minor). Have they changed their opinion on this now? That would indeed seem like a backwards step. The given system would actually work under those circumstances as the 1♣ and 1♠ openings are essentially reversed over the more commonly wanted structure.

[helene_t]

Back when they were first considered the EBU stated that they had no problem with transfer 1♦ and 1♥ openings but were unwilling to countenance a 1♠ transfer opening (for a minor). Have they changed their opinion on this now?

Yes. At level 4 you can't play artificial major suit openings.

 

Anyway, I would think that it's fairly obvious that the purpose of this thread is not to design systems that are legal.