-p TODO
+p.boxed
+ | When a piece moves, the initial square disappears. It creates a
+ a(href="https://en.wikipedia.org/wiki/Wormhole") "wormhole"
+ | .
+
+p.
+ Since all initial squares vanish, the board has exactly 64 - T squares
+ after T turns, so the game cannot last more than 32 moves.
+ Indeed a vanished square can be jumped over, but cannot be used again.
+ Holes are indicated with the letter 'x' on FEN strings.
+
+p.
+ In the diagram situation, the black knight can go to all the marked squares:
+ g5 and f6 are reachable because of the holes on f4 and e5.
+ Indeed the knight first moves one square vertically or horizontally,
+ and only then one square diagonally "in the same direction".
+ This is the only valid description in this variant
+ (others would lead to different knight movements around holes).
+ The black king can go to c6:
+ it moves to the closest non-vanished square (if any).
+
+figure.diagram-container
+ .diagram
+ | fen:rbkxxxbn/ppxppppx/2qxxB2/4x2p/3P1x2/3n1x2/PPPxPPPP/RBxxxNKR b2,f2,b4,c5,g5,f6:
+ figcaption Possible moves for the knight on d3.
+
+p.
+ No castle or en passant captures are possible.
+ Promotion is permitted but only by capturing.
+
+h3 Pieces movements
+
+ul
+ li The rook moves one or two squares vertically or horizontally.
+ li The bishop moves one or two squares diagonally.
+ li The queen moves either like a rook or like a bishop.
+ li.
+ The pawn moves like in orthodox chess, but can jumped over pieces at its
+ initial potential 2-squares move.
+
+h3 End of the game
+
+p Win by checkmate or stalemate: if you can no longer move, you lose.
+
+h3 Source
+
+p
+ a(href="https://www.chessvariants.com/32turn.dir/wormhole.html") Wormhole chess
+ | on chessvariants.com.
+ | I changed the pieces movements because I have a better feeling with the moves
+ | described earlier. It might evolve.
projects / vchess.git / blobdiff