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+p.boxed
+ | If Black castle long, they win. If they cannot, White wins.
+
+p.
+ Besides the usual game end conditions, White can win by preventing black
+ long castle. And, Black can win by castling long.
+
+p For example after 1.e4 e5 2.Bc4, Nc6?? loses immediatly: 3.Bxf7+
+
+figure.diagram-container
+ .diagram
+ | fen:r1bqkbnr/pppp1Bpp/2n5/4p3/4P3/8/PPPP1PPP/RNBQK1NR:
+ figcaption After 1.e4 e5 2.Bc4 Nc6 3.Bxf7+ 1-0
+
+h3 Source
+
+p
+ a(href="https://www.chessvariants.com/winning.dir/castle.html")
+ | Castle chess
+ | on chessvariants.com. See also
+ a(href="http://cinquantesignes.blogspot.com/2020/09/castlechess.html")
+ | this post
+ | giving some clarifications and advices.
+
+p Inventor: Éric Angelini (1996)