A game is a tree with nodes, where each node represents the board after a move and each branch represents a variation of the game (not to be confused with a variant of chess). This tree mirrors the PGN of the game.

To explore a game, an object of this class supports print(), plot(), str(), fen(), pgn() and more.

game(headers = NULL, fen = NULL)



A named list like list("Header1" = "Value1", ...)


FEN representing the starting position of the board


A game root node