Chess Board
[ECO code C21] Move Move Move Here Move Here
CENTRE GAME
(towards) Scotch Gambit / Kieseritzky Var.
Black's KP captured White's QP in the centre.
White develops his King's Bishop to QB4(c4), a transpositional gambit move to threaten the weakest square in Black's king's field (KB7/f7) instead of taking Black's unprotected doubled QP. W-Alt.
	White	Black
 1.	P-K4	P-K4
 2.	P-Q4	PxP
 3.	B-QB4
BLACK to Move or Undo or Jump or Clear
 
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