♥K led and overtaken by East's stiff ♥A. ♦2 switch taken by South's ♦A. Three rounds of ♣ from the top pitching two ♥s with the 3rd round ruffed by West. ♥Q played by West and ruffed by South with East pitching a ♣. ♠10 to East's ♠A and then East played the ♦8.
After a minute or so of thinking, South claimed one-off; indicating that she won't risk the ♦ hook (expecting it to be offside based on West's non-alerted 2♦ bid) in fear of going two-off.
Upon seeing the layout, South complained that had she been told 2♦ was artificial showing ♥s, she would've hooked the ♦.
East-West countered that at the point of the claim, West was known to hold 6♥s and at least 4 black cards so couldn't possibly have a ♦ suit.
No screens. IMP-scored teams. Competent players in the penultimate round-robin match in the qualifying phase for the State teams championships (6th vs 8th in a field of 19 teams with 5 teams qualifying for the next stage).
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