Chess Board
[ECO code A20]
ENGLISH OPENING - Nimzowitsch Var.
Flohr Variation
White's king's-side Knight under attack on KB3(f3) moves to Q4(d4).
Black develops his Queen's Knight to QB3(c6) attacking White's knight further. Play often continues either 4.Kt-B2..Kt-B3 or 3.KtxKt..QPxKt.
	White	Black
 1.	P-QB4	P-K4
 2.	Kt-KB3	P-K5
 3.	Kt-Q4	Kt-QB3
Example ends: Undo or Jump or Clear