Pam Krabbé castling
According to the earlier wording of the FIDE rules, the Pam Krabbé castling was a formally legal move , the possibility of which the chess public was not aware of. It was a castling with a converted rook. The train is named after the two Dutchmen Max Pam , who came up with the idea for the train in 1972, and Tim Krabbé , who published a three-man trainer for it . However, forerunners have been known since 1907.
Explanation
According to the previous rule, castling could only be carried out when
- neither king nor rook involved had moved,
- there is no piece between the king and the rook involved,
- no opposing piece controls the square over which the king moves,
- the king is in check neither before nor after the move.
This does not exclude, is that a farmer to e8 (or e1 ) in a tower under transformed and then the corresponding King with this castled vertically, wherein the king on e3 (or e6 ) and the tower on e2 (or e7 ) comes to stand. In the notation, this form of castling was marked with 0–0–0–0 based on the common symbols.
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History of the train
The move was discovered and processed several times in chess history. The Danish chess composer C. Staugaard had this idea as early as the early 20th century and published the following miniature .
Skakbladet, 11/1907
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- 1. e7 – e8T! Kd3xc2 2. 0–0–0-0 #
The French master Jean-Luc Seret published another double with Pam Krabbé castling in 1971. The latter task was declared an April Fool's joke.
The most influential was the rediscovery of the move by the Dutchman Max Pam and the publication of a three-man move by Tim Krabbé in 1972 (see castling in chess composition ). As a result of the discussion in question, the FIDE rules regarding castling were changed in order to avoid any future ambiguity. They were added to the effect that the king and the rook involved must stand on the same row , which excludes Pam Krabbé castling.
literature
- Tim Krabbé : Schaakkuriosa (1974) (German chess peculiarities: strange, intelligent and amusing combinations , ECON, Düsseldorf 1988, ISBN 3-612-20336-3 ).