Chess Board
[ECO code D18] Move Move Here
OPEN SLAV DEFENCE
Lasker Variation
Black's QR3(a6) knight to QKt5(b4) threatened a supported 8..Kt-B7+ch fork against White's QR.
White's castling develops King's Rook and avoids a supported 8..Kt-B7+ch fork against his QR. B-Alt.
    White  Black	White  Black
 1. P-Q4   P-Q4	     6. P-K3   Kt-R3
 2. P-QB4  P-QB3     7.	BxP    Kt-QKt5
 3. Kt-KB3 Kt-B3     8.	0-0
 4. Kt-B3  PxP
 5. P-QR4  B-B4
BLACK to Move or Undo or Jump or Clear
 
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