Chess Board
[ECO code B32]
SICILIAN DEF. - Orthodox Var.
Bourdonnais-Löwenthal Variation
White's QR3(a3) Knight moves to QB4(c4) to control QR5(a5) and prevent a possible Black ..Q-R4.
Black's QB3(c6) Knight advances to Q5(d4), but 10.BxKt..BxB, 11.Kt-Q5 gives White slight advantage.
    White  Black	White  Black
 1. P-K4   P-QB4     6.	QKt-B3 P-QR3
 2. Kt-KB3 Kt-QB3    7.	Kt-R3  Kt-B3  
 3. P-Q4   PxP	     8.	B-KKt5 B-K2
 4. KtxP   P-K4	     9.	Kt-B4  Kt-Q5
 5. Kt-Kt5! P-Q3
Example ends: Undo or Jump or Clear