I've worked out why the rule has been changed.
More & more people have been buying the game & playing it on the computer, no doubt Hasbro (yes even that word is now legal), have got to the end of their sales so what better? Change the rules and straight away millions of copies now out of date and need replacing.
What a darned, (legal), good sales department that company has, they will make millions.
Now if we can just add another row in chess, how much would that be worth?
