If the game doesn't let you do 3 & 10, it's because you've already moved in two or three other columns this turn. (Or somebody's completed those columns.) - Y

If the game doesn't let you do 3 & 10, it's because you've already moved in two or three other columns this turn. (Or somebody's completed those columns.) - You can only progress in 3 different columns on your turn. The columns you've already progressed in this turn are highlighted. - You can't make progress in a column that's already been completed by you or an opponent.