Castling on the e-file with a promoted rook, an idea immortalized by Tim Krabbe and Max Pam, is no longer legal since FIDE amended the wording to state that castling is an actionn on the first/eigth rank. This new wording seemingly did away with castling with a promoted rook, but did it really? Let me explain in yet another rules lawyering question.
Imagine that the below position occurs in a tournament and White promotes.
[FEN "8/4k2P/8/8/8/8/8/R3K3 w - - 0 1"] 1. h8=R
Ater Black moves, White castles kingside using the rook! Naturally, Black pulls in the arbiter. Ignoring the preamble in the FIDE laws, White defends themsevles using the current laws of castling in the 2018 rules, step by meticulous step.
- "3.8.2 by ‘castling’. This is a move of the king and either rook of the same colour along the player’s first rank, counting as a single move of the king"
Check-White castled on their first rank on a board with two rooks capable of castling.
- "and executed as follows: the king is transferred from its original square two squares towards the rook on its original square, then that rook is transferred to the square the king has just crossed."
Check-The king moves two spaces along the first rank towards the rook on its original square, and the rook goes onto the square the king just passed over.
"18.104.22.168 The right to castle has been lost: 22.214.171.124.1 if the king has already moved, or 126.96.36.199.2 with a rook that has already moved."
Some will argue that the rook, having formly been a pawn, has already "moved," but since FIDE took the time to specify where castling may take place, we may presume that they agreed that the rook is unmoved for the purposes of nitpicking. The rook on a1 is also unmoved, so the stipulation of "either rook" is completed.
"188.8.131.52 Castling is prevented temporarily: 184.108.40.206.1 if the square on which the king stands, or the square which it must cross, or the square which it is to occupy, is attacked by one or more of the opponent's pieces, or 220.127.116.11.2 if there is any piece between the king and the rook with which castling is to be effected."
Check-No pieces block the paths of either the king or the rook, and nor will the king moves out, through, or into check.
As far as I can tell, all conditions for castling are in the green, allowing for castling with a promoted rook along a player's first rank. As far as my research goes, this idea goes back to at least 1918, so it seems weird that this loophole hasn't been fixed yet. Then again, it is a really obscure idea
Is there any glaring flaw in this rules lawyer case, or is it solid until FIDE fixes it? An obvious fix would be make so that the wording reads "This is a move of the king and either starting rook of the same colour," since it is simple and unambiguous.
As commenters have rightfully pointed out, I was vauge as to what my interpertation of the rules were. The point I meant to make was that it is possbile to interpert 3.8.2 as meaning that castling is a move of the king, and not the king and rook, on a player's first rank. The definition of "towards" is loose, as @Annatar pointed out below @Brian Tower's answer. Do note that the arguement is not meant to be strong, but rather merely exist.
I suppose what is comes down to is that the way 3.8.2 is written can be argued to have a syntactic ambiguity. 3.8.2 can mean either "This is a move of the king, and either rook of the same colour, along the player’s first rank," or "This is a move of the king and either rook of the same colour along the player’s first rank." The first interperation combined with the loose meaning "towards" are what culminate in the weak and absurd, but amusing, arguement that castling can be done on a player's first rank with a promoted rank.
The idea of this rule lawyering question is not to exploit any possible loopholes, but to point out a potential ambiguity in the rules to plug it before it gets abused. If there is no loophole, the idea is also to hopefully point out, in a clear manner, what exactly refutes it.