In a no-trump contract, opponents cannot capture "winners." Winners include all aces. A king becomes a guaranteed winner if you hold the ace in the same suit. Additionally, a queen is a winner if you hold the ace, king, etc.
The bid amount sets the stage for the number of winners required to fulfill the contract. For example, a bid of three no-trump necessitates gathering nine tricks. To meet the bid, you can strategically amass tricks by leading winners when the remaining tricks needed align with your remaining number of winners. This strategic approach is key to controlling the game, making every move a calculated decision.
It is unusual for a declarer to hold sufficient winners when play commences. Therefore, the declarer's priority is to develop additional winners. Sacrifice of tricks is required when developing winners, which must be accomplished before gathering the winners.
The methods for developing winners are finesse and leading cards from long suits, which force out opponents' winners.
Always use this sequence in the order listed:
Failure to follow this sequence can result in unpleasant consequences.
Ducking - When opponents attack your weak suit, hold back your winners for as long as is practicable. Spending your only high card on the opening lead will result in a running of the suit by opponents. You may get set before you take a single trick.