Tony Paletta wrote on Mon, Sep 29, 2003 08:54 PM EDT:
Peter: I think the defensive massing of pieces is probably of limited value
in Amphibian Chess. Knights can capture any unit on an edge (I preferred
the Mao-type over the Moa-type partially for that reason) and diagonal
movers can pick off corners or edge-resting units. Only the Rooks are
unequivocally weak against masses.