Ajedrez, — Sin Duda

In the context of the popular chess software ChessBase , the "feature" highlighted as essential is the use of . Key Feature: Visual Annotations

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: AJEDREZ, SIN DUDA

: Users can search for very specific structural features, such as "positions with an isolated queen's pawn". Other Contexts In the context of the popular chess software

: 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. AJEDREZ, SIN DUDA