Good point. This could be fixed by exempting the King from gaining an extra move when he captures a Queen.
The rule that non-Q x Q gives an extra move basically serves to implement the 'counter-strike rule', making indirect trading impossible. But there is no need for a counter-strike when your Queen gets attacked by a King: the Queen would simply capture that King rather than trying to set up a Queen trade.
Good point. This could be fixed by exempting the King from gaining an extra move when he captures a Queen.
The rule that non-Q x Q gives an extra move basically serves to implement the 'counter-strike rule', making indirect trading impossible. But there is no need for a counter-strike when your Queen gets attacked by a King: the Queen would simply capture that King rather than trying to set up a Queen trade.