Chess Board
[ECO code D10] Move Move Here
SLAV DEFENCE
Exchange Variation (alt. route)
White develops his King's Knight to support his QP and deter a Black ..P-K4 advance. W-Alt.
Black develops his own King's Knight for similar reasons. Was "main" move-order to the position in books before 1960s ECO coding.
     White   Black
 1.  P-Q4    P-Q4
 2.  P-QB4   P-QB3
 3.  PxP     PxP
 4.  Kt-KB3  Kt-KB3 Main 3WB,2WB route
WHITE to Move or Undo or Jump or Clear
 
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