Chess Board
[ECO code B15]
Stem: Reti-Tartakover, Vienna 1908 Move Move Here
CARO-KANN DEFENCE
Knight Variation (to Trap Var.)

Black's QR4(a5) queen in danger recouped the KP on K4(e5), stopped 8.KtxKt+ch and enabled 8..KtxKt.
White castles long (ie. Q-side), his Queen's Rook on the open Q-file enabling 8..QxKt, 9.R-K1 wins Q.
    White  Black	White  Black
 1. P-K4   P-QB3     6.	PxP    Q-R4 ch
 2. P-Q4   P-Q4	     7.	B-Q2   QxKP
 3. Kt-QB3 PxP	     8.	0-0-0!
 4. KtxP   Kt-B3
 5. Q-Q3   P-K4!?

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