Chess Board
[ECO code C28] Do not scroll the screen..! Move Move Here Move Here
VIENNA GAME
Max Lange Defence
Black's QKt move to support his KP deterred P-Q4 but reserved a sacrificial 4..KtxP, 5.KtxKt..P-Q4!
White's Queen's Pawn out to Q3(d3) doubles the support for his KP (preventing 4..KtxP, 5.KtxKt..P-Q4! to Black's advantage) and frees his QB. W-Alt.
     White   Black
 1.  P-K4    P-K4
 2.  Kt-QB3  Kt-KB3
 3.  B-B4    Kt-B3
 4.  P-Q3	    Transp.from Bish.O
BLACK to Move or Undo or Jump or Clear
 
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Chess Board

BLACK moves King's Bishop:

B-Kt5 (Bb4) or B-B4 (Bc5) ?

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