Sharp Line with 3.Bh4 g5: Central Break and Conquest

Black's violent thrust 3.Bh4 g5 attempts to trap White's bishop, but White strikes back with the cold-blooded counter 4.f3! White sacrifices the bishop to permanently ruin Black's kingside and establish a crushing united pawn center.

1.d4 Nf6 2.Bg5 Ne4 3.Bh4 g5 4.f3 gxh4 5.fxe4 Bg7 6.e3 O-O 7.Nc3

Move by move

1.d4 – The classical opening strike 1.d4! You seize the center, open diagonal lines for the c1-bishop, and initiate a solid, highly dynamic contest.
1...Nf6 – Black responds with 1...Nf6: developing the knight centrally, preventing an immediate e4, and keeping flexible options for future defense.
2.Bg5 – The Trompowsky Attack with 2.Bg5! You actively deploy the bishop outside the pawn chain, immediately pinning the f6-knight without touching c4.
2...Ne4 – Black chooses the most ambitious response: 2...Ne4! The knight leaps to the center, attacking your bishop directly to challenge its dominance.
3.Bh4 – You retreat the bishop to h4: preserving the annoying pin along the h4-d8 diagonal and enticing Black to overextend their kingside pawns.
3...g5 – Black pushes aggressively with 3...g5: trying to trap your bishop, but ripping open permanent structural chasms around their own monarch.
4.f3 – The immediate central counterstrike 4.f3! Instead of passive defense, you instantly attack the e4-knight and open the f-file for counterplay.
4...gxh4 – Black captures the bishop with 4...gxh4: winning the minor piece, but leaving their kingside pawn structure shattered and completely defenseless.
5.fxe4 – You recapture with 5.fxe4: restoring material equality, establishing a rock-solid central outpost, and unlocking the f-file for your rook.
5...Bg7 – Black places the bishop on g7: seeking counterplay along the long diagonal, but their kingside remains a landscape of isolated weaknesses.
6.e3 – You solidify the center with 6.e3! Constructing an unbreakable barrier against the g7-bishop and opening the diagonal for your light-squared bishop.
6...O-O – Black completes short castling with 6...O-O: seeking safety, but their king lands right behind severely splintered, defenseless pawns.
7.Nc3 – You develop the knight to c3: controlling the key d5 and e4 squares, completing mobilization calmly, and preparing the decisive kingside assault.

How to exploit the position

Retreat the bishop to h4 maintaining pin pressure along the h4-d8 diagonal

Answer Black's aggressive 3...g5 with the explosive central strike 4.f3!
Recapture with 5.fxe4 after 4...gxh4 opening the f-file and taking the center
Develop Nc3 and solidify the central chain with e3 and Bd3
Exploit Black's shattered kingside pawns to mount an irresistible assault

Master tips

The counterstrike 4.f3 seizes the initiative instead of retreating passively

After 5.fxe4 White possesses a massive central bastion controlling critical squares