Chess Board
[ECO code D37] Do not scroll the screen..! Move Move Here Move Here
QUEEN'S GAMBIT
(to) Vienna Variation
White developed his king's knight to control his KKt5(g5) and the two central dark squares (d4/e5).
Black's QPawn on Q4(d5) removes White's gambit QBP, heading towards a sharp line tested in the 1920's by Viennese players. B-Alt.
     White   Black
 1.  P-Q4    P-Q4
 2.  P-QB4   P-K3
 3.  Kt-QB3  Kt-KB3
 4.  Kt-B3   PxP   Transp.from QGA
WHITE to Move or Undo or Jump or Clear
 
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Chess Board

WHITE moves King's Pawn:

P-K3 (e3) or P-K4 (e4) ?

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