Chess Board
[ECO code C22]
CENTRE GAME
(The) Side Variation

Black's QKt attacked White's queen on Q5(d4).
White's Queen retreat to QB3(c3) is a disastrous mistake - it will be lost immediately to a 4..B-QKt5(b4) pin. Best would have been 4.Q-K3 (the Paulsen Attack). W-Alt.
	White	Black
 1.	P-K4	P-K4
 2.	P-Q4	PxP
 3.	QxP	Kt-QB3
 4.	Q-B3??		?? = bad move

Example ends: Undo or Jump or Clear