Dealer South. East-West vulnerable.
South could have opted for a game-forcing opening, but he feared that he would not be able to describe his two-suiter. Confident when seeing a player bidding ♥ at the table, he chose the 1♠ opening. The auction got out of control and when North gave preference to ♠, South took the plunge, looking for slam in a very adventurous way. Now all that remains is to make it.