Fix Checkered and Ultima rules. Write Chess960 rules and complete others

[vchess.git] / views / rules / Alice.pug

diff --git a/views/rules/Alice.pug b/views/rules/Alice.pug
index 7c5fca4..dca1d47 100644 (file)
--- a/views/rules/Alice.pug
+++ b/views/rules/Alice.pug
@@ -41,7 +41,14 @@ p
        | As in the orthodox game, win by checkmating the king. It shouldn't be able to
        | escape the check, not even by moving to the other board.
 
-p Note: en-passant and castle occur as they do in the standard game.
+p.
+       Note: en-passant and castle occur as they do in the standard game.
+       More specifically, en-passant is possible regardless of the worlds pawns are in.
+       This is justified because pawns "go through the mirror" while moving, and can
+       thus be captured either right after or just before they pass the mirror.
+       Castling should be legal according to orthodox rules on the board 1 (it cannot
+       occur on board 2, because it would mean king and rook moved). Moreover, the
+       king cannot be in check on board 2 after castling.
 
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