Easy Mate in 3

Originally posted by Alethia
What about Qxf6?

Well, since the players have already demonstrated a flagrant disregard of the rules, I prefer 1.Qxg8!!, 1-0.

Originally posted by Alethia
My earlier position needs to change- sorry. But how is the other position illegal?
[fen]4r3/3P4/8/8/8/3R4/1k6/4K2R w[/fen]

Try and play out a legal game to reach your position, and you will see why it is illegal.

Originally posted by BigDoggProblem
1.e8R! K~ 2.0-0-0-0-0-0 mate!!

Gotta love joke problems. 😛

Yeah.. I had to edit it because then the King blocks the other Rook.

So you are right. The actual solution is dxe8=R K? 0-0-0-0!

Did you ever figure out why your 3-Knight position is illegal?

Actually I guessed it was something to do with the fact the pieces could never get to that position.

Originally posted by Alethia
Actually I guessed it was something to do with the fact the pieces could never get to that position.

Number of white pawns, the pawn structure (number of captures needed for its to happen) and number of missing(captured) black pieces. The third knight needs to be promoted from somewhere, and there just aren't enough pieces that might have been captured to get it to last rank.

Yes...

Originally posted by Alethia
So you are right. The actual solution is dxe8=R K? 0-0-0-0!

I believe that was taken out of an actual game.

At the time castling rules stated that as long as the Rook and King are unmoved, the king may moves two squares towards the rook and the rook moves to the other side of the king. After this FIDE changed the rules to only allow castling along the back-rank.

Question: What would you call this new castle if you had to name it? I'd call it castling fileside 🙂.

I don't think it was. I got it out of a chess puzzle book. At the time an unmoved King and Rook could castle- you are correct.
I'd call it Super-Castling.