Chess Board
[ECO code C20] Move Move Here
CENTRE PAWN (aka. Lopez) OPENING
White set his QBPawn on QB3(c3) to support 3.P-Q4, adopting an irregular (ie. rarely played) opening.
Black's Queen's Pawn advance to Q4(d5) gives him a pawn centre attacking White's undefended KP and eliminating transpositional possibilities. Slight Black advantage, as after 3.PxP..QxP White has no 4.Kt-QB3 to dislodge the queen and gain a tempo. B-Alt.
	White	Black
 1.	P-K4	P-K4
 2.	P-QB3	P-Q4

WHITE to Move or Undo or Jump or Clear
 
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