Abecedarian Big Chess (ABChess)
Pieces A-F

A

The Archbishop may move like a Bishop, sliding any clear distance along a diagonal, or like a Horse, with a (1,2) leap. When moving like a Horse the Archbishop ignores intervening pieces.

B

The Bishop may slide any clear distance along a diagonal. It may not leap over any piece, or move onto a square occupied by a friendly piece.

C

The Camel moves one square horizontally or vertically, turns 90 degrees, and continues three squares; or the opposite (three squares, turn, one square). In either case it ignores intervening pieces and leaps from square to square.

D

The Dragon may move like a Horse, with a (1,2) leap. It may also move like an orthodox chess pawn, one square straight forward to an empty square or one square diagonally forward to a square occupied by an enemy.

The Dragon does not share the orthodox pawn's two-square forward movement from its starting position.

E

The Eagle moves forward diagonally like a Bishop, sliding any clear distance. It moves vertically backward like a Rook, sliding any clear distance. It moves straight forward or sideways one square. Finally, it moves diagonally backward one or two squares (but does not leap to do so).

F

The Fad may move one square diagonally, or leap two squares diagonally, or leap two squares horizontally or vertically. The two-space moves ignore intervening pieces. Note that a Fad, like a Bishop or Camel, is bound to squares of one color.

The Fad's move combines the classic moves of the Ferz, Alfil, and Dabbabah, whence the name.