Chess Board
[ECO code C43]
PETROFF DEFENCE - Steinitz Attack
Symmetrical Variation
White's QBP to QB4(c4) attacked Black's QP.
Black develops a QKt counter to attack the White QP and threaten his Kt. Best play 8.KtxKt..KtPxKt, 9.P-B5..B-K2, 10.Kt-B3 tends to favour White. B-Alt.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	0-0    0-0
 2. Kt-KB3 Kt-KB3    7.	P-QB4  Kt-B3!?
 3. P-Q4   KtxP
 4. B-Q3   P-Q4
 5. KtxP   B-Q3
Example ends: Undo or Jump or Clear