Chess Board
[ECO code C01] Move Move Here
FRENCH DEFENCE - Exchange Var.
"Petroff" Transposition
White and Black both develop King's Knights, leading to a position also reached in the Petroff Defence (in 6 moves - compare). In this type of transposition (having different totals of moves) each line of play would retain its own name. W-Alt.
     White   Black
 1.  P-K4    P-K3
 2.  P-Q4    P-Q4
 3.  PxP     PxP
 4.  Kt-KB3  Kt-KB3  Equiv. in Petroff
WHITE to Move or Undo or Jump or Clear
 
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