I like the "W" method for the mate, its not that difficult once you get the hang of it. :]
There is a parallel universe where someone only have one rook and the other rook is replaced by a knight. You have to decide at the beginning of the game which rook is replaced and you can only castle with the rook, not the side that has the “third” knight.
in the parallel universe i went to cars drive humans ,
in a parallel universe spider man will ride horsey