This deal is reported by David Barton from a Manchester league match.
David opened one diamond as South, Sue Fjortoft overcalled one spade, Rhona Goldenfield bid two spades to show a good raise in diamonds. Nick Woodcock raised to three spades. David had a very good hand and cue bid his spade control. Now Sue made the fifth consecutive spade bid when she tried five spades. Rhona decided that her useful controls and extra length in diamonds warranted a slam. David made this contract by guessing who had the heart queen. Note that a save in six spades is very cheap, perhaps somebody should have bid spades for the sixth time in the auction.