Chess Board
[ECO code A40]
LUNDIN / NIMZOWITSCH-QP. DEFENCE
White's KP advance to the centre supported his QP, freed his KB and gave a K-side path for his queen.
Black's own KPawn to K3(e6) frees his KB and queen, and now "White cannot develop without allowing an exchange favourable to Black" (Benjamin/Schiller, Unorthodox Openings). B-Alt.
	White	Black
 1.	P-Q4	Kt-QB3
 2.	P-Q5?!	Kt-K4!?
 3.	P-K4	P-K3
Example ends: Undo or Jump or Clear