Board Position
A Queen's Pawn Side Defence appealing to the more attacking player as it gives Black a measure of counterplay (although less suitable for beginners). First noted in "Traite des Amateurs" in 1775. Board Position
Black replies 1..P-KB4 to White's P-Q4 (move 1wb, seen left) in an outright attempt to obtain control of White's K4 (and permanently prevent the advance of White's KP). Using this square as a springboard for his Kt or Kts, Black aims at an attack on the K-side.
The drawback of this defence is that Black's pawn structure tends to become unsound and several of his pawns get placed on White squares (eg. Stonewall move 7wb, right) giving difficulty in developing his QB. However White has little option but to follow the early opening into one of three branches (the Stonewall, the Classical and the Leningrad) or play the Staunton Gambit.
Begin or Clear or Groups or see move: 1 d4 f5 to:
(Main:) 2 c4 e6 3 g3 Nf6 4 Bg2 Be7 5 Nf3 0-0 6 0-0
to S/wall: 6..d5 7 Nc3 c6 8 Qc2 Qe8 9 Bf4 Qh5 etc.
(Mod:) 2 g3 e6 3 Bg2 Nf6 4 Nf3 Be7 5 0-0 0-0 6 c4 to I-Gen: 6..d6 7 Nc3 Qe8 8 Qc2 Qh5 9 e4 fxe4 etc.