About FEEN
FEEN (Forsyth–Edwards Enhanced Notation) is a compact, canonical, and rule-agnostic textual format
for representing static board positions in two-player piece-placement games. It extends traditional
FEN notation to support cross-style scenarios, arbitrary board dimensions, and captured pieces management.
FEEN consists of three space-separated fields: <PIECE-PLACEMENT> (board configuration),
<PIECES-IN-HAND> (captured pieces), and <STYLE-TURN>
(active player and style identifiers).
Learn more about the FEEN Specification.