Tā yòng le yīgè qiǎomiào de cèlüè yíngdé le zhè chǎng tánpàn.
He used an ingenious strategy to win the negotiation.
Tips
usage
巧妙 emphasizes the cleverness and elegance of a solution or design. It's always positive. Compare with 聪明 (smart, about people) - 巧妙 is about methods, designs, and ideas.