[thorvald]

Playing with the advanced bots in the Zenith daylongs, I got this hand:

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At all 15 tables this was the start, and you have to decide how to continue.

Normally with 5-card support it is ok just to jump to game, but with all red I wasn't sure it was the best, so after some considerations I settled with 3♠, and got the following continuation:

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4♣ was natural (19-22 points), and 6♦ was odd number off keycards and a void (probably in ♠).

Is this the time for a sacrifice?

I decided not, and the bot quickly picked up all 13 tricks on this layout:

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Well not a great result and I got 25% like 7 others, but interesting how to get a decent score.

One player did sacrifice in 6♠ and got 57%.

One player did not support partner at all, and the bots found a 4-3 fit in ♥, making 12 but worth 64%.

Three players jumped to 4♠ and two of them played a trump to early, resulting in 3 down, but still 75% - the one playing better went only 2 down and 86%.

Now the last two players found the right solution

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I am not sure, why West couldn't bid 3♣, but the two players got 96% for their shared top.

Interesting how the middle road gave the bad result.

[johnu]

You have to love the description for 4♣ -

4 ♦ ... twice rebiddable ♣

[Hanoi5]

johnu, on 2023-March-29, 15:16, said:

You have to love the description for 4♣ -

4 ♦ ... twice rebiddable ♣

Well, maybe the robot is Italian...