Cozio Defense Puzzle (Rated 1167): Fork — Win a Bishop

This is a classic middlegame double attack: a single check that also targets a second piece. When the enemy king is exposed behind a weakened pawn shield, a checking square that is also a launch point for a fresh attack is gold — it forces a king move, and anything your move hit along the way stays hanging. Here Black's attack leans on the queen's long reach along rank and diagonal, while pins already freeze White's defenses on the kingside. One decisive check decides the game.