Move semantics rely on the distinction between (objects that have a persistent address) and rvalues (temporary objects).
: In games like "Dots and Boxes," moves are classified by their complexity. A "short step" occurs when few empty points surround a position, while a "long step" is defined by moving between points with three or more empty neighbors. move rules
This story follows the principle of Rule #6: throwing a character into their least comfortable situation. Move semantics rely on the distinction between (objects