 White plays in hypermodern style, attacking the center from the flanks with pieces rather than occupying it with pawns.These openings are played often, and 1.Nf3 and 1.c4 trail only 1.e4 and 1.d4 in popularity as opening moves.If White opens with 1.Nf3, the game often becomes one of the d4 openings (closed games or semi-closed games) by a different move order (this is called "transposition"), but unique openings such as the Réti and King's Indian Attack are also common.