I am interested in the idea and perhaps a little less in the formulation of the description.
But what people will see here is the description, and not your ideas. It is the task of editors to make sure the presentation is concise and clear.
Your description is plain wrong: pieces are not bound to columns at all; each piece can reach the entire board. It is just that they move differently in different files (which is the usual English Chess jargon for what you call 'columns'). And even that is not strictly true, as there are Pawn moves in all files, and on 1st and 9th rank every type can be anywhere.
It is also not clear whether a piece morphed into a Pawn on 2nd rank has a double move. The Interactive Diagram doesn't grant one.
The description is also ambiguous as to whether castling is allowed; 'takes place' seems wrong wording for being allowed anyway. Whether it will take place depends on the players.
But what people will see here is the description, and not your ideas. It is the task of editors to make sure the presentation is concise and clear.
Your description is plain wrong: pieces are not bound to columns at all; each piece can reach the entire board. It is just that they move differently in different files (which is the usual English Chess jargon for what you call 'columns'). And even that is not strictly true, as there are Pawn moves in all files, and on 1st and 9th rank every type can be anywhere.
It is also not clear whether a piece morphed into a Pawn on 2nd rank has a double move. The Interactive Diagram doesn't grant one.
The description is also ambiguous as to whether castling is allowed; 'takes place' seems wrong wording for being allowed anyway. Whether it will take place depends on the players.