Chess Board [ECO code B07]
(The) Longfellner System

White took up an invite to an early classical centre.
Black pushes his King's Pawn out a single square to K3(e6) and frees his queen and (partially) KB but blocks his previously open QB diagonal. Inferior but defensively sound, the Longfellner System teaches safe opening pawn moves to beginners! B-Alt.
    White  Black    Equiv. French route
 1. P-K4   P-Q3	    (1.	P-K4   P-K3)
 2. P-Q4   P-K3     (2.	P-Q4   P-Q3)

Example ends: Undo or Jump or Clear