Final answer:
Each skill in a sport has a specific function determined by that sport's rules, and understanding these rules is essential for champions in any field to gain an advantage.
Step-by-step explanation:
Each skill in a sport has a specific function or role determined by the rules of the sport. For example, in chess, a sport of mental skill, the rules dictate how each piece can move, what turns can be taken, and the sequence of play.
The effectiveness of these rules in maintaining a fair and structured game is why chess champions, and all champions in various sports, strive to understand and utilize the rules to their advantage. Whether a sport is based on physical prowess or mental acuity, champions in these fields use the rules, whether they are precise or open to interpretation, to gain a competitive edge.