An aggressive continuation where White immediately targets c7.
1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 - See Classical Main Line.
6.Nb5 - Blumenfeld Attack! Instead of c3, White immediately targets c7 with the knight.
Critical line: 6...Bxe3 7.Nxc7+ Kd8 8.Nxa8 Bc5 - White wins material but Black gets strong compensation with active pieces and White's knight is trapped.
Alternative: 6...Qg6 - Black sidesteps the tactics and keeps the queen active.
White's plan: Create immediate threats against c7, exploit Black's exposed queen, gain material or initiative.
Black's plan: Defend accurately, consider counter-sacrifices, activate pieces rapidly.
Assessment: Sharp and tactical. Both sides need to know theory well.
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