Anderssen's Opening Intermezzo in Chess

Anderssen's Opening Intermezzo is a tactical motif where, after a forcing sequence begins, you insert an “in-between” move before continuing your main plan. In Anderssen’s Opening, it’s typically tied to the moment when one side has committed pieces to a line and the other can gain tempo by playing a disruptive move first—often with a check, capture, or threat that changes the balance. The defining feature is that the intermezzo move is played at the critical fork in the forcing sequence, not as a random sidestep.