Here is a fun, freak one (at least from my side’s perspective). I was sitting South:
I opened preemptive 2 diamonds in 2nd seat. That may be a bit too conservative, but the vulnerability worried me. West overcalled two spades. Partner jumped to five diamonds at her 1st turn. East bid five spades My hand was suddenly much improved because of the fit, so I furthered my own preempt by bidding six diamonds. West doubled, ending the auction.
Check our partner’s hand on opening lead!
The play went quickly. I won the second trick, drew trump in two rounds, and claimed for plus 1540.
West may have been too undisciplined with her two spades overcall. Here was her hand:
