I think these clauses cover off the apparent hole you discovered:
3.10
- A move is legal when all the relevant requirements of Articles 3.1 – 3.9 have been fulfilled.
- A move is illegal when it fails to meet the relevant requirements of Articles 3.1 – 3.9
- A position is illegal when it cannot have been reached by any series of legal moves.
(#236) Because the rules don't indicate that's a possible move.
Okay then. I want someone to show me where it says that I cannot take a piece/pieces & move them back to where they once were (ex: pawns).
Now do you see all the contradiction w/out explanation ?
3.10b A move is illegal when it fails to meet the relevant requirements of Articles 3.1 – 3.9