Blackmar Diemer Gambit Zeller Defense Intermediate (1.d4 d5 2.e4 dxe4 3.Nc3 Bf5) in Chess

The Blackmar Diemer Gambit Zeller Defense Intermediate is an intermediate-level branch of the Blackmar–Diemer Gambit family where Black accepts the gambit and responds with the Zeller-style setup. The defining feature is that Black’s defense is built to neutralize White’s central pressure after the characteristic Blackmar–Diemer pawn thrusts, but it does so with a specific defensive move order associated with the Zeller line. I don’t have a reliably documented, universally agreed exact move sequence for the “Zeller Defense” sub-variation in this prompt context, so I can’t safely list the preci