Category: Curiosities

This task is called Proof Game (or, in this case, Shortest Proof Game), and it belongs to the category of retrograde analysis chess problems.

An Albino chess problem is characterized by a unique scenario in which a white pawn, positioned on its starting square, performs all four of its potential moves during the solution. These moves include advancing one square forward, advancing two squares forward, capturing to the left, and capturing to the right.

The Saavedra position stands as a renowned chess endgame study, honoring the Spanish priest Fernando Saavedra (1849–1922), who resided in Glasgow during the late 19th century. Despite not being a highly skilled player, he astutely discovered a winning strategy featuring a remarkable underpromotion in a position that was previously believed to result in a draw.

The official record stands at six, considering only serious games. Additionally, Black’s outstanding accomplishment lies in promoting four pawns.

The Knight’s Tour is a puzzle that involves moving a knight on a chessboard in such a way that it visits each square exactly once.

Turton doubling refers to a strategic move employed in chess, involving the sequential movement of two pieces along a line, such as a rank, file, or diagonal.

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Zepler doubling refers to a specific tactic employed in chess problems. It involves a piece initially moving along a particular line, such as a rank, file, or diagonal.

A joke chess problem is a puzzle in chess that incorporates humor as either a primary or secondary aspect. While most chess problems, like other forms of creative expression, are valued for their serious artistic themes, joke chess problems provide entertainment through unexpected twists.

The Lacny cycle, also known as the Lacny cycle problem theme, was introduced by Ľudovít Lačný, a Slovak chess problem composer and judge, in 1949. This concept exemplifies a cyclical relationship between lines of play in chess.