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  2. Grant Acedrex - Wikipedia

    en.wikipedia.org/wiki/Grant_Acedrex

    The pawn moves like the modern pawn, but cannot make an initial double step or capture en passant.Its Betza notation is mfWcfF.When it reaches the other end of the board (the twelfth rank for White, or the first rank for Black), it promotes to the piece that was originally there: the exception is that a pawn promoting on the g-file becomes an aanca.

  3. List of fairy chess pieces - Wikipedia

    en.wikipedia.org/wiki/List_of_fairy_chess_pieces

    Dabbabante Chess (V.R. Parton 1971) A piece that can jump directly to any square a Dabbabarider can reach. Dabbabarider: n(~ 2+) (in same direction) DD: Fairy Chess problems: A rider which moves any number of (0,2) squares (i.e., Dabbaba moves) in the same direction. It is the Skip-rook of problemists (G.P. Jelliss). Dayrider: o1 n(~2 )in same ...

  4. Amazon (chess) - Wikipedia

    en.wikipedia.org/wiki/Amazon_(chess)

    An icon for the amazon used in diagrams. The amazon, also known as the queen+knight compound or the dragon, is a fairy chess piece that can move like a queen or a knight.It may thus be considered the sum of all orthodox chess pieces other than the king (because it cannot castle and does not know when it is under threat via the check rule) and the pawn (because it cannot practice en passant).

  5. Exchange (chess) - Wikipedia

    en.wikipedia.org/wiki/Exchange_(chess)

    In chess, an exchange [1] or trade of chess pieces is a series of closely related moves, typically sequential, in which the two players capture each other's pieces. Any type of pieces except the kings may possibly be exchanged, i.e. captured in an exchange, although a king can capture an opponent's piece.

  6. Perpetual check - Wikipedia

    en.wikipedia.org/wiki/Perpetual_check

    A mutual perpetual check is not possible using only the orthodox chess pieces, but it is possible using some fairy chess pieces. In the diagram, the pieces represented as inverted knights are nightriders : they move any number of knight moves in a given direction until they are blocked by any piece along the path (that is, a nightrider is to a ...

  7. Chess piece relative value - Wikipedia

    en.wikipedia.org/wiki/Chess_piece_relative_value

    If pieces are asymmetrical, moves going forward are about twice as valuable as move going sideways or backward, presumably because enemy pieces can generally be found in the forward direction. Similarly, capturing moves are usually twice as valuable as noncapturing moves (of relevance for pieces that do not capture the same way they move).

  8. Barnes Opening - Wikipedia

    en.wikipedia.org/wiki/Barnes_Opening

    The move does exert influence over the central square e4, but the same or more ambitious goals can be achieved with almost any other first move. The move 1.f3 does not develop a piece, opens no lines for pieces, and actually hinders the development of White's king knight by denying it its most natural square, f3.

  9. Portal chess - Wikipedia

    en.wikipedia.org/wiki/Portal_Chess

    A piece can check/checkmate players using the portal. A piece must exit the portal in the direction it traveled into the portal. A portal can be moved onto a piece causing it to teleport, unless the other portal is occupied by any piece. A player has a choice to move a chess piece or the portal piece in one turn, not both.