Chess Board
[ECO code C65]
RUY LOPEZ - Berlin Defence
Fishing Pole Variation
White's Queen's Pawn advance to Q4(d4) frees his QB and attacks the dark QB5(c5) bishop.
Black's QB4(c5) Bishop retreat to QR2(a7) keeps pressure on White's QP, KBP and king. Equality.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	Kt-B3  B-B4
 2. Kt-KB3 Kt-QB3    7.	Kt-Q5  P-R3
 3. B-Kt5  Kt-B3     8.	B-R4   P-Q3
 4. 0-0	   Kt-Kt5?!  9.	P-Q4   B-R2
 5. P-KR3  P-KR4
Example ends: Undo or Jump or Clear