Ralph Betza, the most profilic CV man around, invented the Crab.
An half-knight piece, able to move to the two most forward squares plus
the two least backward squares of the knight. It's a simple piece,
not able to do many fancy things. However it has some charm attached to
it, enough to name a city out of it!
Every pawn moves like the crab and takes like usual FIDE pawns
No promotion, no en-passant
vrt: (The Lobster City) Pawns move like Lobsters and take like Berolina
pawns
vrt: (The Crab Metropolis) Every unit moves like the Crab and captures
as in FIDE chess.
vrt: (Stress in Crab City) Each player makes two moves (one move
for white 1st turn)
note: these are the moves for the crab and the lobster:
. . . . . . . . . . . . . x . x . . x . . . x . . . . . . . . . . . . . . . C . . . . . L . . . x . . . x . . x . x . . . . . . . . . . . . . .