Zud dating

However, the player who is not in zugzwang must play carefully because one inaccurate move can cause him to be put in zugzwang.

The diagram on the right shows a position of reciprocal zugzwang. Kd7 is forced, which loses because White will move 2. If White is to move the result is a draw as White must either stalemate Black with 1.

Over time however the term became especially associated with chess.

zud dating-1

Games like chess and checkers have "zugzwang" (or "zugpflicht"): a player must always make a move on his turn even if this is to his disadvantage.

Tabletop war games or role playing games have not: on his turn a player can simply decide to "wait" or "do nothing".

The word comes from German Zug 'move' Zwang 'compulsion', so that Zugzwang means 'being forced to make a move'.

Originally the term was used interchangeably with the term zugpflicht 'obligation to make a move' as a general game rule.

Paul Morphy is credited with composing the position illustrated "while still a young boy". Ra6, Black is in zugzwang and must allow mate on the next move with 1...bxa6 2.b7# or 1... In chess literature, most writers call positions of the second type zugzwang, and the third type reciprocal zugzwang or mutual zugzwang.

Some writers call the second type a squeeze and the third type zugzwang. A player is said to be "in zugzwang" when any possible move will worsen their position. The concept of zugzwang was known to players many centuries before the term was coined, appearing in an endgame study published in 1604 by Alessandro Salvio, one of the first writers on the game, and in shatranj studies dating back to the early 9th century, over 1000 years before the first known use of the term. If it is White's move, they must either stalemate Black with 1. Zugzwang is a mainstay of chess compositions and occurs frequently in endgame studies. In the position on the right, White has just gotten his king to a6, where it attacks the black pawn on b6, tying down the black king to defend it. Kc6 or allow Black to An extreme type of reciprocal zugzwang, called trébuchet, is shown in the diagram. bxc3 6.bxc3, which just leaves Black with a serious positional advantage and an extra pawn.

Tags: , ,