By contrast, a cold game is one where each player can only worsen their position by making the next move.
Hackenbush can only represent tepid and cold games (by its decomposition into a purple mountain and a green jungle).
In general, players will prefer to move in the hottest component available.
In the game of Snort, Red and Blue players take turns coloring the vertices of a graph, with the constraint that two vertices that are connected by an edge may not be colored differently.
In contrast, in the closely related game Col, where adjacent vertices may not have the same color, positions are usually cold.
The theory of hot games has found some application in the analysis of endgame strategy in Go.