Black tempts White's pawns forward to form a broad pawn centre, with plans to undermine and attack the white structure later in the spirit of hypermodern defence. White's imposing mass of pawns in the centre often includes pawns on c4, d4, e5, and f4. Grandmaster Nick de Firmian observes of Alekhine's Defence in MCO-15 (2008), "The game immediately loses any sense of symmetry or balance, which makes the opening a good choice for aggressive fighting players."[1]