Learn › Unit 5: Playing on this site

Reading shogi notation

You'll meet four ways of writing moves. They all say the same thing.

The site's notation

Every board here is labelled a–i along the files and 1–9 along the ranks, and moves are written the way the server stores them:

WrittenMeans
g3g4move the piece on g3 to g4
h2b8+move from h2 to b8 and promote
G*e8drop a gold on e8

That is what you see in a game's move list, and what the lessons use.

Western notation (the explorer, English books)

English-language books and the opening explorer use Hodges notation. Files are numbered 1–9 from Sente's right to left, ranks 1–9 from the top (Gote's side), and a move is piece, then how it moves, then where to:

WesternSiteMeaning
P-76g3g4pawn moves to 7-6
Bx22+h2b8+bishop captures on 2-2 and promotes
G*52G*e8gold dropped on 5-2

To translate a square: the site's letter is the file counted from the right (a = 1, i = 9), and the Western rank is 10 minus the site's number. So g3 is file 7, rank 7: 76 is g4.

g3g4 is P-76 — the bishop-opening pawn. b3b4 is P-26, the rook pawn.ihgfedcba987654321
g3g4 is P-76 — the bishop-opening pawn. b3b4 is P-26, the rook pawn.

Japanese notation

Japanese records use full-width numerals for the file and kanji numerals for the rank, then the piece: 7六歩 is P-76. 同 means "on the same square as the last move", so a recapture is written 同銀 — "silver takes back".

KIF files

KIF is the file format shogi programs share. Every finished game here can be downloaded as KIF from the game page or your dashboard, and you can open any KIF file with Open a KIF to step through it.