fen

Documentation

Overview

Package fen contains utilities for read and writing positions in FEN notation.

Index

• Constants
• func Decode(fen string) (*board.Position, board.Color, int, int, error)
• func Encode(pos *board.Position, c board.Color, noprogress, fullmoves int) string
• func NewBoard(startpos string, moves ...string) (*board.Board, error)
• func Strip(pos string) string

Constants

const (
	Initial = "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
)

Functions

func Decode

func Decode(fen string) (*board.Position, board.Color, int, int, error)

Decode returns a new position and game status from a FEN description.

Example:

"rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"

func Encode

func Encode(pos *board.Position, c board.Color, noprogress, fullmoves int) string

Encode encodes the position and game data in FEN notation.

func NewBoard

func NewBoard(startpos string, moves ...string) (*board.Board, error)

NewBoard returns a Board for the position with moves. Convenience function.

func Strip

func Strip(pos string) string

Strip returns a FEN position without noprogress and move number. Useful as key.