Editing Chess notation (section)

===Notation for telegraph and radio===
Some special methods of notation were used for transmitting moves by telegraph or radio, usually using [[Morse Code]].  The Uedemann code and Gringmuth notation worked by using a two-letter label for each square and transmitting four letters – two letters for the origin square followed by two letters for the destination square.  Castling is shown as a king move.  Squares are designated from White's side of the board, files from left to right and ranks from nearest to farthest.  The Rutherford code first converted the move into a number and then converted the move number into a composite Latin word.  It could also transmit moves of two games at the same time.
<!-- The codes below are in subsections so they can be linked from other articles -->

====Uedemann code====
This code was devised by [[Louis Uedemann]] (1854–1912).  The method was never actually used, mainly because a transposition of letters can result in a valid but incorrect move.  Many sources incorrectly use this name for the Gringmuth code.

The files are labeled "A", "E", "I", "O", "O", "I", "E", and "A".  The ranks are labeled "B", "D", "F", "G", "H", "K", "L", and "P". A square on the {{chessgloss|queenside}} is designated by its file letter and then its rank letter.  A square on the {{chessgloss|kingside}} is designated by its rank letter then its file letter.<ref name="Hooper">[[David Vincent Hooper|David Hooper]] and [[Kenneth Whyld]], 1992, ''[[The Oxford Companion to Chess]]'', {{ISBN|0-19-280049-3}}</ref>

==== Gringmuth notation ====
This method was invented by Dmitry Alexeyevich Gringmuth but it is sometimes incorrectly called the Uedemann Code. It was used as early as 1866. Files were designated with one of two letters, depending on whether it was on White's side or Black's side. These letters were: files 'B', 'C', 'D', 'F', 'G', 'H', 'K', and 'L' for White-side ranks 'A', 'E', 'I', 'O', corresponding to algebraic files 'a', 'b', ... 'h', and ranks 1, 2, 3, 4;  the aligned Black-side ranks were 'M', 'N', 'P', 'R', 'S', 'T', 'W', and 'Z', corresponding to algebraic 'a' ... 'h', used for Gringmuth ranks 'O', 'I', 'E', and 'A' corresponding to algebraic ranks 5, 6, 7, 8. Hence square 'a1' in algebraic notation is Gringmuth 'BA', and its diagonal opposite 'h8' is Gringmuth 'ZA'. A king's pawn opening 'e2e4' in algebraic would be 'GEGO' in Gringmuth, with a mirrored response by black 'e7e5' notated as 'SESO'.<ref name=Hooper/>

====Rutherford code====
This code was invented in 1880 by Sir [[William Watson Rutherford]] (1853–1927).  At the time, the British Post Office did not allow digits or [[cipher]]s in telegrams, but they did allow Latin words.  This method also allowed moves for two games to be transmitted at the same time.  In this method, the legal moves in the position were counted using a system until the move being made was reached. This was done for both games.  The move number of the first game was multiplied by 60 and added to the move number of the second game.  Leading zeros were added as necessary to give a four-digit number.  The first two digits would be 00 through 39, which corresponded to a table of 40 Latin roots.  The third digit corresponded to a list of 10 Latin prefixes and the last digit corresponded to a list of 10 Latin suffixes.  The resulting word was transmitted.

After rules were changed so that ciphers were allowed in telegrams, this system was replaced by the Gringmuth Notation.<ref name="Hooper" />