+++ /dev/null
-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 other pieces move like in orthodox chess.
-p All pieces can jump over others when moving by two squares.
-
-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.
-
-p
- | Inventor (with other pieces' movements): Fergus Duniho (2000).
- | Similar to
- a(href="https://www.chessvariants.com/boardrules.dir/cheshir.html")
- | Cheshire Cat Chess
- | by Vernon R. Parton (1970).