Blackmar Diemer Gambit Declined Deflection in Chess

In the Blackmar-Diemer Gambit Declined, “deflection” is the tactical idea where White tries to lure Black’s key defender away from an important square or line before White’s main threat lands. A defining feature is that White has already committed to the gambit structure, but Black declines the offered pawn(s), so the tactic must work by disrupting Black’s piece coordination rather than by immediate material gain.