| Board 1 North Deals None Vul |
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| West | North | East | South |
| Pass | 1♠ | Dbl | |
| 2♠ | Pass | 3♠ | All pass |
| 3♠ by East |
Lead: ♥ A
On the ♥ A lead, North must encourage with ♥ 3 (low = like).
South can show which suit to return by playing a low heart on the 3rd round.
(low = lower side-suit = ♣ suit).
South then wins ♣ A and returns another heart to be ruffed by North to prevent
a club discard.