- Weakened Back Rank
60 games, 1859-2017 - Weakened Castled Position
260 games, 1680-2017 - Zugzwang
Zugzwang, which is a German word that means "compelled to move," incorporates two essential ideas:
(1) The position would be defendable (or at least much more secure) for the player in zugzwang if they could break the rules and forego having to make their next move; and
(2) The position is such that any move of a piece significantly weakens the position (usually resulting in a lost position).
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| 32 games, 1896-2006
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