Comments/Ratings for a Single Item

Playing around with the interactive board I start appreciating this great invention. It looks like Chess in the first sight, but it is so different!

Knights are colourbound, Bishops are colourswitching, but both pieces keep control over their original target squares, provided there is a fall-back square behind. All pieces are more powerful in the endgame compared to the normal Chess men. One rook can mate unassisted and forced, one bishop and a king mate against a lone king.

Some open questions, to one who has access to the original sources for that game:

Is castling really allowed while rooks cannot move along their base lines? It fells like cheating even more than in standard Chess.

Can rooks and queens pass a move (going one step orthogonally forward and fall back)?

Can rooks and queens capture by igui a piece in front of them ending on their starting square (can only be a pawn)?

I'd assume that null move is illegal since it's the default

And castling is a King's move.

Not knowing the original description by the author of that variant it is only a guess.

Knights are colourbound, Bishops are colourswitching, but both pieces keep control over their original target squares, provided there is a fall-back square behind. All pieces are more powerful in the endgame compared to the normal Chess men. One rook can mate unassisted and forced, one bishop and a king mate against a lone king.

Can rooks and queens pass a move (going one step orthogonally forward and fall back)?