Chess Board
[ECO code C78]
MORPHY RUY LOPEZ TRANSPOSITION
ARCHANGEL VAR. to CLOSE DEFENCE (Main line)

Black's KB development to K2(e7) enabled castling.
White transposes into the main Close Defence continuation by moving his K-side Rook to K1(e1), defending his KP.
    White  Black	White  Black
 1. P-K4   P-K4      6. B-Kt3  P-Q3
 2. Kt-KB3 Kt-QB3    7.	P-B3   B-K2
 3. B-Kt5  P-QR3     8.	R-K1
 4. B-R4   Kt-B3
 5. 0-0    P-QKt4  Transp. 5B-8W route

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