[jammen]

We miss our small slam in ♥ or 6♣ to defend a spade partial.

---

Of course I upgraded my 1nt (1♥second choice), 2♠Cappelletti spades & minor, 2nt Lebensol forces 3♣

[steve2005]

It is very common for Gib to make this type of underbid.
Gib has 7 card suit 2 aces and a void, what kind of 1NT does gib need to be close to slam?
Not much Gib undervalues long suits.
Have seen worse with 8 cards suits!

[Stephen Tu]

basic or advanced bot?

I feel like this is more likely with basic bot, it probably has bad definitions for what 4c/5c should now mean, and doesn't have sims turned on that should tell it that the extreme shape makes bidding on a good gamble even though it probably doesn't meet the supposed point requirement for those bids.

My old PC GIB gets itself to 5c.

[jammen]

How do I tell if it is a basic or advanced bot? I was playing Bridge 4 (set of 4 deals, leaderboard).

[johnu]

jammen, on 2018-April-12, 11:20, said:

How do I tell if it is a basic or advanced bot? I was playing Bridge 4 (set of 4 deals, leaderboard).

In general, anything free uses the basic bots. Anything on a pay per tournament basis is an advanced bot. If you are renting bots, you rent either a basic or an advanced bot.

[pescetom]

steve2005, on 2018-April-10, 18:41, said:

It is very common for Gib to make this type of underbid.

Not just an underbid but a misbid: no trace of a stopper in ♠ and no attempt to find fit in ♥ or ♣.

[virgosrock]

Stephen Tu, on 2018-April-10, 18:48, said:

basic or advanced bot?

I feel like this is more likely with basic bot, it probably has bad definitions for what 4c/5c should now mean, and doesn't have sims turned on that should tell it that the extreme shape makes bidding on a good gamble even though it probably doesn't meet the supposed point requirement for those bids.

My old PC GIB gets itself to 5c.

what was the bidding sequence for your old PC GIB

thanks

vrock

[Stephen Tu]

pescetom, on 2018-April-12, 12:31, said:

Not just an underbid but a misbid: no trace of a stopper in ♠ and no attempt to find fit in ♥ or ♣.

It's arguably an underbid, but not a misbid. Original poster doesn't have the annotations; 2nt is lebensohl, it is attempting to play a club partial. It doesn't show a stopper in spades (if not followed by 3nt/3s) and forces to 3c.

[Stephen Tu]

virgosrock, on 2018-April-12, 13:09, said:

what was the bidding sequence for your old PC GIB

It likes 3c directly, forcing, bypassing leb. Even if I force leb it will try 5c next time around.

[jammen]

Stephen Tu, on 2018-April-12, 13:53, said:

It's arguably an underbid, but not a misbid. Original poster doesn't have the annotations; 2nt is lebensohl, it is attempting to play a club partial. It doesn't show a stopper in spades (if not followed by 3nt/3s) and forces to 3c.

2nt lebonsohl is a transfer to clubs but says nothing about the club suit. The bot could have long ♦ or a variety of other hands.