You play poish club for this event, so you open
1♣ (2 ♥) pass (pass)
2 ♠ (pass) 4 ♠ all pass.
2 Heart was a weak two.
The lead is the Jack of hearts.
You don´t know your opponents, but they are surely not experts, an unknown couple.
They play SEF and the lead is standard in this case, so it is the Jack from KJTxxx
or from JTxxxx.
Do you take your 11 sure tricks, or do you go for 12? And why?

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