Chess Board
[ECO code C43] Move Move Here
PETROFF DEFENCE - Steinitz Attack
(to) Symmetrical Variation (alt. route)
Black advanced his QPawn to the centre to support his knight, and freed his QB.
White develops his King's Bishop to Q3(d3) to attack Black's knight, and enables castling.
	White	Black
 1.	P-K4	P-K4
 2.	Kt-KB3	Kt-KB3
 3.	P-Q4	KtxP
 4.	KtxP	P-Q4
 5.	B-Q3	     Main 5W,4W route
BLACK to Move or Undo or Jump or Clear
 
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