Descriptive notation abbreviated to the first letter of its name: K for king, Q for queen, R for rook, B for bishop, P for pawn. Knight begins with the same letter as king, so it is abbreviated to either "Kt" (used in older chess literature) or "N". "N" is used in this article. In 1944 "Chess Review" received many letters debating the change from Kt to N . In descriptive notation each square has two names, depending on Black's or White's viewpoint. Each is given a name corresponding with the piece that occupies the first at the start of the game. Thus
Chess notation an almost fully developed form before the now obsolete descriptive chess notation evolved. The main difference between Stamma's system and the modern system is that Stamma used "p" for pawn moves and the original file of the piece ("a" through "h") instead of the initial letter of the piece. In London in 1747, Philidor convincingly defeated Stamma in a match. Consequently, his writings (which were translated into English) became more influential than Stamma's in the English-speaking chess world; this may have led to the adoption of a descriptive system for writing chess moves, rather than Stamma's coordinate-based approach. However, algebraic