From The Art and Popular Culture Encyclopedia
Zugzwang (German for "compulsion to move", Template:IPA-de) is a term usually used in chess which also applies to various other games. The term finds its formal definition in combinatorial game theory, and it describes a situation where one player is put at a disadvantage because he has to make a move when he would prefer to pass and make no move. The fact that the player must make a move means that his position will be significantly weaker than the hypothetical one in which it was his opponent's turn to move.
- Combinatorial game theory, in which all mutual zugzwangs are equivalent to 0.
- Corresponding squares
- Forced move
- Key square
- King and pawn versus king endgame
- Null-move heuristic
- Opposition (chess)
- Triangulation (chess)