Chess Board
[ECO code B15 > 16] Move Move Move Move Here Move Here Move Here
The Knight Variation

White's QKt completed a pawn exchange on K4(e4).
Black here develops his King's Knight to KB3(f6) to attack White's knight, rather than 4..Kt-Q2 or (usually) 4..B-B4, and expects 5.KtxKt+ch in reply. A line as named in the Oxford Companion. B-Alt.
	White	Black
 1.	P-K4	P-QB3
 2.	P-Q4	P-Q4
 3.	Kt-QB3	PxP
 4.	KtxP	Kt-B3

WHITE to Move or Undo or Jump or Clear
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