Betza's funny notation ones. The notation is based on dividing moves that can be made on a board of squares into groups of symmetry-equivalent moves, the moves within a group differing only in the direction in which the step is taken. Each such group (referred to as "atom") is indicated by a capital, such as N for the 8 moves of the knight. The letter that represents the atom is usually the first letter of the simplest piece from current or historic chess variants that has this move, such as A and F for the alfil and ferz of shatranj (ancient Arabic/Persian chess).
Chess piece outset. Some small magnetic sets, designed to be compact and/or for travel, have pieces more like those used in shogi and xiangqi – each piece being a similar flat token, with a symbol printed on it to identify the piece type. On computers, chess pieces are often 2D symbols on a 2D board, although some programs have 3D graphics engines with more traditional designs of chess pieces. Unicode contains symbols for chess pieces in both white and black. The value assigned to a piece attempts to represent the potential strength of the piece in the game. As the game develops,