FEEN Viewer

Enter FEEN notation string Enter a valid FEEN notation string to visualize the board position

The position should be generated here.

About FEEN

FEEN (Field Expression Encoding Notation) is a minimalistic, rule-agnostic textual format for capturing static board positions in a canonical, compact, and game-neutral way.

FEEN strings consist of three space-separated fields: <PIECE-PLACEMENT> (board configuration), <HANDS> (pieces in each player's hand), and <STYLE-TURN> (styles and active player). Piece identifiers follow PIN-style conventions, with optional state modifiers (+, -) and optional terminal markers (^).

Learn more about the FEEN Specification.

Example FEEN Strings

Chess Starting Position: +rnbq+k^bn+r/+p+p+p+p+p+p+p+p/8/8/8/8/+P+P+P+P+P+P+P+P/+RNBQ+K^BN+R / C/c
Shōgi Starting Position: lnsgk^gsnl/1r5b1/ppppppppp/9/9/9/PPPPPPPPP/1B5R1/LNSGK^GSNL / S/s
Cross-Style Game (Chess vs Makruk): rnsmk^snr/8/pppppppp/8/8/8/+P+P+P+P+P+P+P+P/+RNBQ+K^BN+R / C/m
Irregular Board Shape: rk^r/pp/PPPP / G/g
1D Chess Board (size 8) Starting Position: k^+p4+PK^ / C/c