He always wanted a superior center; he maneuvered his pieces to the king side, and around the 25th move, he began to mate his opponent.
He played gigantic conceptions, full of outrageous and unprecedented ideas. Its hard to find mistakes in his game, but in a sense, his whole method of play was a mistake. Alekhine developed much more slowly as a player than most great players. He didn’t reach his world class strength until well into his thirties.