Chess Board
[ECO code C23] Move Move Here
The Calabrian Counter-Gambit

White's KB controlled Q5 and attacked Black's KBP.
Black rarely advances his King's Bishop's Pawn to KB4(f5) hoping that if White accepts the gambit then Black may overrun the centre by 3..Kt-KB3, 4..P-Q4. First given by Polerio (c.1550-1610) but named after Greco's homeland. Now a dubious line. B-Alt.
	White	Black
 1.	P-K4	P-K4
 2.	B-B4	P-KB4?!

WHITE to Move or Undo or Jump or Clear
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