[Fluffy]

I played a neat hand last night and wanted to share it, but the problem is not suitable for a single position problem, so I can't help you except you can play it on my webpage.
Click here to play it

I have been toying around with some features trying to give more freedom to the player, but there is a non zero chance that I messed up at some point (actually I did, but I think I have fixed it already), if I messed up the hand will freeze probably with a "Loading... " message trying to find out on the DB what card to play next. If that is the case, please report it.

The hand is not easy, don't play it too fast.

[Antrax]

I tried leading a high diamond, it forced me to lead a heart. Is that really clear on this auction? Isn't it likely there's AQ on my right?

[kenrexford]

I tried to lead the spade King, and this also was not allowed, despite it being the right lead, IMO.

Granted, a small heart lead seems to work OK, but Declarer seems to have a cater. He wins in hand, crosses to the diamond honor, and then leads a small club toward the Q-x-x. If I pop King, Declarer has no problems, so I duck. He wins the Queen and plays a small club toward his hand. If he plays small from hand, Declarer still has no problem. If my partner sticks in the 10, Declarer has no reason to do anything but duck, playing me for KJx initially. If my partner is smart enough to play the Jack, which might look like an initial J-x, then Declarer could get this wrong by covering. So, what does he do if he sees the Jack?

This is a strange reverse restricted choice, perhaps. Normally, we compare both, one, and the other, playing for either one because 1 occurs 2X as often as both. This time, however, we are playing for both or one against just the other, meaning that ducking works 2X as often as rising. However, the alternative way of looking at the problem -- with the J10x he could have played either first -- restricted choice seems to work for rising on the Jack. Except that (1) partner will often play the 10 from 10x initially, which affects the situation, (2) if partner has KJ it does not matter what I do, and (3) the person with J10x will often falsecard.

The problem with the programming, though, is that Declarer does not find this play and that we cannot control partner's moves.

[Fluffy]

Antrax, on 2013-December-11, 10:36, said:

I tried leading a high diamond, it forced me to lead a heart. Is that really clear on this auction? Isn't it likely there's AQ on my right?

Depends on the decisions you made first, I tried to make it look like declarer is being asked to bid NT with 1 stopper, but I couldn't handle it in all options. The hand is pointless on a non heart lead so...

I will make RHO tank on some to make it more realistic and attract the heart lead

[Cyberyeti]

Fluffy, on 2013-December-11, 12:13, said:

Depends on the decisions you made first, I tried to make it look like declarer is being asked to bid NT with 1 stopper, but I couldn't handle it in all options. The hand is pointless on a non heart lead so...

I will make RHO tank on some to make it more realistic and attract the heart lead

I failed before seeing dummy, thought Q opposite Axx was more likely than A opposite Qxx.

[Fluffy]

spade leads, diamond leads, and ♥K... I gotta remember that Qxx is a full stopper against you guys

now seriously, ♥K is totally reasonable, and the hand being a problem might influence you towards it. I might as well forbid it for the same reason I forbid the others.

[hautbois]

I don't understand the play of J♣. Is that standard rather than inserting the T?

[Fluffy]

for me it is, J shows J10, 10 shows 109, others play that J shows J109 I think and 10 shows J10, but anyway, the jack is consistent with the 10, only doubt is about the ♣9 which doesn't matter

[Antrax]

Fluffy: my auction was
1♥-(1♠)-2♥-(p)
Then we both passed throughout and the opponents continued:
X-3♣; 3♥-3NT

To me it seemed most likely partner has a diamond entry.

[Fluffy]

he needs 2 entries if declarer has ♥AQx, its way easir to find partner with ♥Q

[Antrax]

[edit]
Learned to count to 13