1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Qh4 - See Steinitz Variation introduction.
5.Nb5 - Horwitz Attack. White immediately targets c7, creating a double attack on c7 and the queen.
5...Bb4+ - Black gives check to gain a tempo and disrupt White's coordination.
6.Bd2 - White blocks the check while developing the bishop. The bishop can later exchange on b4.
White's plan: Create immediate threats against c7, force Black to defend, win material or gain initiative.
Black's plan: Develop after the check with ...Nf6 or ...a6, counter-attack in the center, seek active piece play.
Assessment: Sharp and tactical. Both sides need accurate play. White often gets a small advantage.
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