Chess Board
[ECO code D40 > 42] Move Move Move Move Here Move Here Move Here
The Semi-Tarrasch Defence

White developed his king's knight to control his KKt5(g5) and the two central dark squares (d4/e5).
Black advances his QBPawn to QB4(c5) attacking White's QP - the Semi-Tarrasch (a defence where Black can avoid suffering an isolated QP). B-Alt.
     White   Black
 1.  P-Q4    P-Q4
 2.  P-QB4   P-K3
 3.  Kt-QB3  Kt-KB3
 4.  Kt-B3   P-B4  Transp.from Tarrasch

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