Saturday, September 21, 2013

Zugzwang

Zugzwang (German for "compulsion to move", pronounced [ˈtsuːktsvaŋ]) 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.

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lordosis

  Lordosis is historically defined as an abnormal inward curvature of the lumbar spine.