Perpetual check

Perpetual check or eternal chess refers to a situation in chess in which a king successive opposing chess commandments can neither escape nor refute this by interposing dragging stones. Thus, the game ends in a draw, either by repetition of position or - in rare cases - by the 50 - move rule. According to the rules of the World Chess Federation FIDE each of the two players can apply for draw as soon as the conditions laid down in one of these rules are satisfied.

A perpetual check is usually enforced by a player, which assesses its position as the poor and wants to use the opportunity to end the game at least a draw. This may be the case, for example, when an attack in the middle game, for the material was sacrificed does not lead to checkmate, the opponent's king but chess commandments can not escape. A typical example is the so-called Immortal drawn game. Also in the women's finals perpetual check is a commonly encountered motif.

Examples

22 Kh1 - g1 - g4 Df3 etc.

The example diagram shows a typical duration of a constellation chess match between Bobby Fischer and the former world champion Mikhail Tal during the Chess Olympiad in Leipzig. Black is in material residue and is now with the lady on the fields g4 and f3 continually chess, whereupon the white king divides his time between h1 and g1.

Another example can be found in the advice section of readers Pionerskaya Pravda - Mikhail Tal, which also ended with a perpetual check.

The studies by Filip Semjonowitsch Bondarenko and Hermann Rübesamen end with perpetual check.

Weblink

  • Laws of Chess
  • Chess motif
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