Unlike many board games and games of chance, chess has a set of rules that distinguish it. Mainly because they seek the greatest autonomy of the player with respect to the decisions and strategies used. The result is a game that relies on the player's ability, agility, and preparation.
Chess results in combat, or rather, in a demonstration of skills. It demands and de-exhausts players psychologically, emotionally, intellectually and physically, so that the preparation of a chess player can be compared to that of an athlete. While tournaments, championships, and Olympiads measure players against each other.