Whiplash Posts today mentioned:

Fog Of War:

The fog of war (German: Nebel des Krieges) is the uncertainty in situational awareness experienced by participants in military operations.[1] The term seeks to capture the uncertainty regarding one's own capability, adversary capability, and adversary intent during an engagement, operation, or campaign. Military forces try to reduce the fog of war through military intelligence and friendly force tracking systems. The term has become commonly used to define uncertainty mechanics in wargames.

Abstract and military board games sometimes try to capture the effect of the fog of war by hiding the identity of playing pieces, by keeping them face down or turned away from the opposing player (as in Stratego) or covered (as in Squad Leader[6]). Other games, such as the Kriegspiel chess-variant, playing pieces could be hidden from the players by using a duplicate, hidden game board.[7]

https://news.1rj.ru/str/EightQBall