Final answer:
The play mentioned is called a double play, specifically a '6-4-3 double play,' which is a key defensive move in baseball resulting in two outs.
Step-by-step explanation:
The play you are describing is known as a double play in baseball. In the situation you provided, the shortstop fields the ball and throws to the second baseman, who then throws to first base to get two outs, typically referred to as a '6-4-3 double play' based on the standard numerical position assignments where 6 represents the shortstop, 4 the second baseman, and 3 the first baseman. Double plays are a great defensive strategy to get multiple outs on a single hit, often shifting the momentum of the game.