--- /dev/null
+p.boxed
+ | Chaque move played ends up on another board (the "other side of the mirror").
+ | So there are two boards. All pieces start on board 1.
+
+h3 Specifications
+
+ul
+ li Chessboard: standard.
+ li Material: standard + Alice pieces.
+ li Non-capturing moves: standard.
+ li Special moves: standard.
+ li Captures: standard (if on same board).
+ li End of game: standard.
+
+h3 Basics
+
+p
+ | Two boards are used in this variant. Pieces from board 2 are represented on
+ | the main board, upside down.
+ | Any move played must be valid on the board it is played on.
+ | In addition, the final square should not be occupied by a piece from the other board
+ | (thus allowing to represent all on one board).
+
+p Notation for Alice pieces was chosen as follow:
+ul
+ li Pawn : S
+ li Rook : U
+ li Knight : O
+ li Bishop : C
+ li Queen : T
+ li King : L
+
+figure.diagram-container
+ .diagram
+ | fen:rnbqkbnr/ppp1pppp/8/8/2p5/5O2/PP1PPPPP/RNBQKB1R:
+ figcaption After the moves 1.Nf3 Pd5 2.Pc4 Sxc4
+
+h3 End of the game
+
+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.
+ 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.
+
+h3 Credits
+
+p
+ | Alice chess pages on
+ a(href="https://www.chessvariants.com/other.dir/alice.html") chessvariants.com
+ | and on
+ a(href="https://www.schemingmind.com/journalarticle.aspx?article_id=9")
+ | schemingmind.com
+ | .
projects / vchess.git / blobdiff