Chess Board
[ECO code C22]
CENTRE GAME - Berger Var.
Side Variation
White's inferior KB to QB4(c4) targeted Black's KBP.
Black's QB3(c6) Knight to K4(e5) doubles his KBP support and attacks White's bishop, for slight advantage by 6.B-Kt3..B-QKt5+ch, 7.P-B3..B-K2.
        White   Black
 1.	P-K4    P-K4
 2.	P-Q4    PxP
 3.	QxP     Kt-QB3
 4.	Q-K3    Kt-B3!
 5.	B-B4!?  Kt-K4
Example ends: Undo or Jump or Clear