Bad 6cH and partner opens 1NT

[eyhung]

Got it, dellache, we agree, I missed the double-dummy qualifier.

[nigel_k]

I hope I won't be LOL ed at but how can 1NT be both the hardest to defend and the hardest to declare?!

I would say that 1NT is probably the contract where both sides are most likely to fall short of optimal (double dummy) play. If that's what the post meant then it makes sense. The declaring side will nevertheless do better than defenders on average, compared to the double dummty result.

 

I think the explanation for Jeff Miller's findings is that declarer has more decisions to make relative to the defence as the level of the contract increases. Though declarer always has an advantage over the defence in accurately exploiting his side's combined assets, as he has more opportunities to go wrong and the defence have fewer, the defence may do better compared to double dummy.

 

In 6NT (compared to 1NT) declarer may need to find a missing jack, drop a doubleton queen offside, or other similar decisions. While he is doing this the defence will usually just be following suit. While declarer's advantage over the defence in getting decisions right remains, the number of decisions for each side means that the defence becomes 'easier' as the level increases.

[vincit]

I won't bug you with another figures, but here's is the result of the second strategy (bid 2♦, and bid 4♥ if pard shows 4+♥) : you gain 0.36 imp per board this time.

 

 

1°) Partner with a 4 card fit can be mini or Maxi what is the impact on the sim?

2°) The key issue is the duplication of value in C in case of a fit you can have the info below 3H

 

For instance :

 

1NT 2D

2S = 4H mini

2NT = 4H + anti-splinter in C (xxx or little wasted values)

3C = 4H + anti-splinter in D

3D = 4H + anti-splinter in S

3H = 4H Maxi

 

So now in case of a super-fit you can analyze the true value of your singleton, the downside maybe that you are telling too much to the defense

 

Worth the trouble or not ?

[dellache]

I won't bug you with another figures, but here's is the result of the second strategy (bid 2♦, and bid 4♥ if pard shows 4+♥) : you gain 0.36 imp per board this time.

 

 

1°) Partner with a 4 card fit can be mini or Maxi what is the impact on the sim?

2°) The key issue is the duplication of value in C in case of a fit you can have the info below 3H

 

For instance :

 

1NT 2D

2S = 4H mini

2NT = 4H + anti-splinter in C (xxx or little wasted values)

3C = 4H + anti-splinter in D

3D = 4H + anti-splinter in S

3H = 4H Maxi

 

So now in case of a super-fit you can analyze the true value of your singleton, the downside maybe that you are telling too much to the defense

 

Worth the trouble or not ?

Worth the trouble if you play this kind of stuff throughout your system... which is the case in the very complex system I play with one of my pards. You need to design it as to make the describing hand dummy most of the time.

 

I think that locating shortness (or ideal holdings facing potential shortness) everytime it might be needed is really missing in most of the "natural" systems.

[gnasher]

1NT 2D

2S = 4H mini

2NT = 4H + anti-splinter in C (xxx or little wasted values)

3C = 4H + anti-splinter in D

3D = 4H + anti-splinter in S

3H = 4H Maxi

 

So now in case of a super-fit you can analyze the true value of your singleton, the downside maybe that you are telling too much to the defense

 

Worth the trouble or not ?

I think that the cost in terms of helping them with the lead is far too high.

[vincit]

I think that the cost in terms of helping them with the lead is far too high.

 

 

 

Alternatively if you consider you can be at three tricks with invitational hands you can invite from the opener's side showing your shortness for instance after 2H

 

2NT = Invitation with 6H or 5H4xx and shortness in C

3C = Shortness in D

3D = Shortness in S

 

You keep 2S as a Relay something along these lines ... If opener's interesting in your shortness with a fit he will bid game, in addition he can rectify the transfer with good hands to investigate further

 

With this solution you get the best of both worlds