3.10 b. A move is illegal when it fails to meet the relevant requirements of Articles 3.1 – 3.9.
Uncastle fits 3.10b and hence is illegal.
3.10b is not the argument. The argument is most closely related to jengy's. Is the move illegal per the requirements of 3.8a ?
I'm holding the stance that the law is "not judiciously clear". I find it somewhat implictly clear tho' highly questionable @ this point.
If you can show me a point in 3.1-3.9 where uncastling is mentioned then please do so
I'm guessing that the rules say nothing about having to wear clothes while playing chess, should this therefore be prohibited?