Stonewall Dutch
1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 d5 5.Nf3 c6 6.O-O Bd6 7.b3 Qe7
Black builds the stone wall with ...e6, ...d5 and ...c6, places the bishop on d6 and the queen on e7. White usually tries to trade Black's good dark-squared bishop, for example with b3 and Ba3, and fights for the e5 square with Ne5 or Nd3.