One more thing though:
If the inventor had concentrated only on point 1 - the throne square - we might have something.
I think this variant would work discarding points 2 + 3 (make 3 move repetition a draw, stalemate a draw just as in standard chess) .
It is illegal to move to throne square if you put yourself in check.
It could be interesting because sometimes even a bare king vs king and rook may win!
Too bad, this idea was sunk by the *need* to correct an imaginary 'flaw' in chess.