Chess Board
[ECO code C22]
CENTRE GAME - Berger Var.
Winaver Variation
White's light QB4(c4) Bishop under attack moves to Q3(d3) and increases his KP defence.
Black's Q3(d6) Pawn moves on to Q4(d5) joining the attack on White's QP, with a slight advantage.
   White  Black		White  Black
 1. P-K4   P-K4	     6.	B-Q2   0-0
 2. P-Q4   PxP	     7.	0-0-0  R-K1
 3. QxP    Kt-QB3    8.	B-B4   P-Q3
 4. Q-K3   Kt-B3!    9.	P-B3   Kt-QR4
 5. Kt-QB3 B-Kt5    10.	B-Q3   P-Q4
Example ends: Undo or Jump or Clear