Kings Gambit Accepted Schallopp Defense Double Check in Chess

In the Kings Gambit Accepted Schallopp Defense Double Check, Black accepts the King’s Gambit and then uses the Schallopp Defense setup to generate a tactical double-check—one move that gives check to the White king twice via two lines/pieces. The defining feature is that Black’s attacking pieces coordinate so the same move creates two simultaneous checking threats, forcing White to respond immediately.