e1, e8: Royal Knight
Click on a piece below to see its moves
Sliding capture or non-capture,
|Unblockable leap (capture or non-capture)|
|Piece||ID||value||Moves (Betza notation)||Remarks|
|Royal Knight||K||-||N||Can castle with Rook, moving 2 steps towards it|
|Queen||Q||10||RB or Q|
|Pawn||P||1||mfWcfF||Promotes to Q, R, B, or M on reaching last rank|
A Royal Knight that has not moved before can move two squares in the direction of a Rook that has not moved before, in which case that Rook is moved to the square on the other side next to the Royal Knight. This is only allowed if all squares traveled through by Royal Knight and Rook are empty (after their removal), when the Royal Knight is not in check on the square it came from, and would not be in check on any of the squares it skipped over.
The King moves as a Knight, the Knights move as a King.
It is not possible to force checkmate on a bare King with just a single Rook, Bishop or Commoner (in addition to your own King). All pairs of pieces can force checkmate on a bare King, however. A Queen can even do it without help of its Royal Knight, and is thus extremely dangerous.
Bishops are confined to squares of a single color. Having Bishops on both colors compensates this weakness, and is worth an extra 0.5 on top of their added value.