Schallopp Defense, Tashkent Attack

After 4. e5 Nh5 in the Schallopp Defense, the Tashkent Attack, 5. g4, is White's most aggressive try. Instead of developing, White attacks the undefended knight on h5 and grabs kingside space. The knight has few good squares because the e5-pawn covers f6. The cost is a further loosening of White's own king position in a line where Black is already a pawn up, so the play is sharp and tactical.