Chess Board
[ECO code C18]
FRENCH WINAWER DEFENCE
"6..Q-B2" Variation
White's QB3(c3) Pawn removes Black's newly doubled QP on Q4(d4) in exchange, and undoubles.
Black develops King's Knight to K2(e7) and enables castling, set for 10.B-Q2..0-0 with equality.
    White  Black	White  Black
 1. P-K4   P-K3	     6.	PxB    Q-B2
 2. P-Q4   P-Q4	     7.	Q-Kt4  P-B4
 3. Kt-QB3 B-Kt5     8.	Q-Kt3  PxP
 4. P-K5   P-QB4     9.	PxP    Kt-K2
 5. P-QR3  BxKt ch
Example ends: Undo or Jump or Clear