| 1 | p.boxed |
| 2 | | If Black castle long, they win. If they cannot, White wins. |
| 3 | |
| 4 | p. |
| 5 | Besides the usual game end conditions, White can win by preventing black |
| 6 | long castle. And, Black can win by castling long. |
| 7 | |
| 8 | p For example after 1.e4 e5 2.Bc4, Nc6?? loses immediatly: 3.Bxf7+ |
| 9 | |
| 10 | figure.diagram-container |
| 11 | .diagram |
| 12 | | fen:r1bqkbnr/pppp1Bpp/2n5/4p3/4P3/8/PPPP1PPP/RNBQK1NR: |
| 13 | figcaption After 1.e4 e5 2.Bc4 Nc6 3.Bxf7+ 1-0 |
| 14 | |
| 15 | h3 Source |
| 16 | |
| 17 | p |
| 18 | a(href="https://www.chessvariants.com/winning.dir/castle.html") |
| 19 | | Castle chess |
| 20 | | on chessvariants.com. See also |
| 21 | a(href="http://cinquantesignes.blogspot.com/2020/09/castlechess.html") |
| 22 | | this post |
| 23 | | giving some clarifications and advices. |
| 24 | |
| 25 | p Inventor: Éric Angelini (1996) |