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In the context of the popular chess software ChessBase , the "feature" highlighted as essential is the use of . Key Feature: Visual Annotations AJEDREZ, SIN DUDA
: Used to show plans, threats, or the intended path of a piece. If you're looking for a specific or a
: Edgar Allan Poe famously used the phrase "Ajedrez. Sin duda alguna..." in The Murders in the Rue Morgue to argue that the game of Whist requires more analytical power than chess. : Edgar Allan Poe famously used the phrase "Ajedrez
: Used to mark critical weaknesses, strong outposts, or targeted pieces.
While text comments and move variations are standard, visual tools are described as vital for "recognizing at a first glance" what is happening in a position. These features include: