There are many plays described in bridge books. There are also deals where the book game is wrong for one reason or another. Sometimes the problem is deciding which category a particular deal fits into. Other times it is recognizing the book game in an unusual shape.
South’s overtime on one no-trump showed good 15 to 18 points. North’s raise to the game was aggressive. He arguably added a point for his faint five-card suit.
West led the spade seven: two, kid, six. As the east continued with the king of spades, the south won with its ace. Now the declarant led the club queen out of his hand. If West had won with the king, he would have been unable to lead yet another spade, so he popped the plug to his partner’s ace. East continued with the lady and another spade, establishing his nine, but he had no re-entry. Declarer admitted a clover to the king of the west and demanded nine jacks: two spades, three hearts, a diamond, and three clubs. The diamond finesse was not necessary.
The defenders shrugged and complimented South for his duck by trick one. South thanked them, but he knew better. He had noted that if East plays save nine (or four) at jack one, the contract could be defeated. South wins with spade 10 and leads a clover, but West flies in with the king and returns his second spade. The color of the East is established while still having the club ace as an entry.
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In a non-trump contract, when the player has two stoppers in the suit you are trying to establish, get him to use one of them as soon as possible.