user-1: Sorry if this question is a duplicate one, but I can't find the algebraic notation for castling. What is it?

user24693: I assume you mean castling? 0-0 denotes kingside castling, i.e. the "short" way, and  0-0-0 is for queenside castling, i.e. the "long" way. The zeros represent the number of squares the rook travels.

user8860: In either algebraic or descriptive notation, castling is notated 0-0 or O-O on the Kingside (when the King goes to g1 or g8) and 0-0-0 or O-O-O on the Queenside (when the King goes to c1 to c8).  See for example https://en.wikipedia.org/wiki/Algebraic_notation_(chess)#Castling

-1: <p>Sorry if this question is a duplicate one, but I can't find the algebraic notation for castling. What is it?</p>
 24693: <p>I assume you mean castling? 0-0 denotes kingside castling, i.e. the &quot;short&quot; way, and  0-0-0 is for queenside castling, i.e. the &quot;long&quot; way. The zeros represent the number of squares the rook travels.</p>
 8860: <p>In either algebraic or descriptive notation, castling is notated 0-0 or O-O on the Kingside (when the King goes to g1 or g8) and 0-0-0 or O-O-O on the Queenside (when the King goes to c1 to c8).  See for example <a href="https://en.wikipedia.org/wiki/Algebraic_notation_(chess)#Castling" rel="nofollow noreferrer">https://en.wikipedia.org/wiki/Algebraic_notation_(chess)#Castling</a></p>
