I was not intending to be flipant or require than I scratch a up a win, but rather to stimulate debate. I know now that this move is currently allowed (else I would have won) however I was at first suprised to see that the 'move into a capture position' rule applied also to the king - this situation had not arisen before in any of my games.
What if white had enough pieces to go and build a 2nd fortress? I would rather not have the king privy to the same rules. These games are obviously based upon real life events. Do you think the Moscovans would stand around, drinking tea with the king? I think not! ;)