Chess Board
[ECO code D00] Move Move Move Here Move Here
(to) Blackmar-Diemer Gambit

White's KP attacked Black's QP - a rarer sacrificial move, likely planning the Blackmar-Diemer Gambit (arguably unsound in professional play).
Black's Queen's Pawn under attack on Q4(d5) usually removes White's sacrificial king's pawn, although transpositions into other defences (eg. French, Caro-Kann) were equally possible. B-Alt.
	White	Black
 1.	P-Q4	P-Q4
 2.	P-K4!?	PxP

WHITE to Move or Undo or Jump or Clear
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