Carlsen often seems to win without doing anything in particular, but
doing it very well. Commentators have tried to explain his peculiar gift
by appealing to 'nettlesome' moves, moves that have no obvious dangers,
but perhaps are surprisingly awkward to meet.
Carlsen, particularly when younger, has been noted more for his
avoidance of sharp and theoretical lines, than having signature opening
systems. He often seems content to aim for a 'normal' White plus in the
opening, hoping to build on it later on, particularly in blitz.