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).
Diplomat chess piece except the king. In notation, suborn is represented by the destination cell, followed by the equal symbol (=) and then the colour the suborned piece changes to, alternatively only one letter: b for black and w for white. Example: b3=b for 'the piece on b3 becomes black'. (There is no need of writing the letter D for the diplomat). The game can be played through the Zillions of Games game platform, by downloading the corresponding files from this link. Diplomat chess Diplomat chess is a chess variant invented by Carlos Martín-Fuertes in 2003 as a contribution to a Contest