ICCF numeric notation - AbsoluteAstronomy.com

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ICCF numeric notation is the official chess

Chess

Chess is a two-player board game played on a chessboard, a square-checkered board with 64 squares arranged in an eight-by-eight grid. It is one of the world's most popular games, played by millions of people worldwide at home, in clubs, online, by correspondence, and in tournaments.Each player...

game notation

Chess notation

Chess notation is the term for several systems that have developed to record either the moves made during a game of chess or the position of the pieces on a chess board. The earliest systems of notation used lengthy narratives to describe each move; these gradually evolved into terser systems of...

for all International Correspondence Chess Federation

International Correspondence Chess Federation

International Correspondence Chess Federation was founded in 1951 as a new appearance of the ICCA , which was founded in 1945, as successor of the IFSB , founded in 1928....

games. This is because in international correspondence chess

Correspondence chess

Correspondence chess is chess played by various forms of long-distance correspondence, usually through a correspondence chess server, through email or by the postal system; less common methods which have been employed include fax and homing pigeon...

the use of algebraic notation

Algebraic chess notation

Algebraic notation is a method for recording and describing the moves in a game of chess. It is now standard among all chess organizations and most books, magazines, and newspapers...

may cause confusion, since different languages have different names (and therefore different initials) for the pieces

Chess piece

Chess pieces or chessmen are the pieces deployed on a chessboard to play the game of chess. The pieces vary in abilities, giving them different values in the game...

.

In brief, each square of the chessboard

Chessboard

A chessboard is the type of checkerboard used in the board game chess, and consists of 64 squares arranged in two alternating colors...

has a two-digit designation. The first digit is the number of the file, from left to right from White's point of view. The second digit is the rank from the edge near White to the other edge. Moves are designated by giving four digits – the first two are the code for the square of the piece that is moving and the last two are the code for its destination square .

Details

In numeric notation all the squares are numbered with a two-digit number. In this simple coordinate system

Coordinate system

In geometry, a coordinate system is a system which uses one or more numbers, or coordinates, to uniquely determine the position of a point or other geometric element. The order of the coordinates is significant and they are sometimes identified by their position in an ordered tuple and sometimes by...

the first digit describes the file and the second one the rank. A move is defined by pairing two of these two-digit coordinates together: the move that would be written 1. e4 in algebraic notation

Algebraic chess notation

Algebraic notation is a method for recording and describing the moves in a game of chess. It is now standard among all chess organizations and most books, magazines, and newspapers...

would be written 1. 5254 in numeric notation. The pawn

Pawn (chess)

The pawn is the most numerous and weakest piece in the game of chess, historically representing infantry, or more particularly armed peasants or pikemen. Each player begins the game with eight pawns, one on each square of the rank immediately in front of the other pieces...

starts from square (5,2) (file 5, rank 2) and moves to (5,4). Neither the type of the moving piece nor captures are specifically marked in Numeric notation - all moves, except for pawn promotion

Promotion (chess)

Promotion is a chess rule describing the transformation of a pawn that reaches its eighth rank into the player's choice of a queen, knight, rook, or bishop of the same color . The new piece replaces the pawn on the same square and is part of the move. Promotion is not limited to pieces that have...

, consist of only four digits.

In pawn promotion a fifth digit must be added: "1" for queen

Queen (chess)

The queen is the most powerful piece in the game of chess, able to move any number of squares vertically, horizontally, or diagonally. Each player starts the game with one queen, placed in the middle of the first rank next to the king. With the chessboard oriented correctly, the white queen starts...

, "2" for rook

Rook (chess)

A rook is a piece in the strategy board game of chess. Formerly the piece was called the castle, tower, marquess, rector, and comes...

, "3" for bishop

Bishop (chess)

A bishop is a piece in the board game of chess. Each player begins the game with two bishops. One starts between the king's knight and the king, the other between the queen's knight and the queen...

and "4" for knight

Knight (chess)

The knight is a piece in the game of chess, representing a knight . It is normally represented by a horse's head and neck. Each player starts with two knights, which begin on the row closest to the player, one square from the corner...

. For instance in the case of a pawn on f7 moving to f8 and promoting to a rook would be 67682. A four digit notation where the ending rank is omitted (because it is always "8" for White and "1" for Black) can also be seen: 6762. However, this is confusing and against the standard.

For castling

Castling

Castling is a special move in the game of chess involving the king and either of the original rooks of the same color. It is the only move in chess in which a player moves two pieces at the same time. Castling consists of moving the king two squares towards a rook on the player's first rank, then...

, the king

King (chess)

In chess, the king is the most important piece. The object of the game is to trap the opponent's king so that its escape is not possible . If a player's king is threatened with capture, it is said to be in check, and the player must remove the threat of capture on the next move. If this cannot be...

start position and end position are recorded: for white, 5131 (queenside) and 5171 (kingside); for black, 5838 (queenside) and 5878 (kingside).

History

The system was devised about 1803 by German professor J. W. D. Wildt of Göttingen. It was used 25 years later by Johann Koch, and is sometimes named after him. Ivan Savenkov supported its use in 1877 and it bears his name in Russia.

External links

The source of this article is wikipedia, the free encyclopedia. The text of this article is licensed under the GFDL.

18	28	38	48	58	68	78	88
17	27	37	47	57	67	77	87
16	26	36	46	56	66	76	86
15	25	35	45	55	65	75	85
14	24	34	44	54	64	74	84
13	23	33	43	53	63	73	83
12	22	32	42	52	62	72	82
11	21	31	41	51	61	71	81

18	28	38	48	58	68	78	88
17	27	37	47	57	67	77	87
16	26	36	46	56	66	76	86
15	25	35	45	55	65	75	85
14	24	34	44	54	64	74	84
13	23	33	43	53	63	73	83
12	22	32	42	52	62	72	82
11	21	31	41	51	61	71	81

Details

History

See also

External links

18	28	38	48	58	68	78	88
17	27	37	47	57	67	77	87
16	26	36	46	56	66	76	86
15	25	35	45	55	65	75	85
14	24	34	44	54	64	74	84
13	23	33	43	53	63	73	83
12	22	32	42	52	62	72	82
11	21	31	41	51	61	71	81