Chess Board
[ECO code C42] Do not scroll the screen..! Move Move Here Move Here
PETROFF'S DEFENCE
Main line

Black developed his KB and QKt and enabled castling, poised to counter-attack White's QP.
White moves his K-side Rook to K1(e1), starting an attack on the king's file. W-Alt.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	B-Q3   B-K2
 2. Kt-KB3 Kt-KB3    7.	0-0    Kt-QB3
 3. KtxP   P-Q3	     8.	R-K1
 4. Kt-KB3 KtxP
 5. P-Q4   P-Q4

BLACK to Move or Undo or Jump or Clear
 
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Chess Board

BLACK moves Queen's Bishop:

B-B4 (Bf5) or B-Kt5 (Bg4) ?

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