[ECO code C48]
LOPEZ FOUR KTS' GAME to RUY LOPEZ
White transposes into the Tarrasch line of the Ruy Lopez by moving his threatened Bishop to QR4(a4), set for 6.B-Kt3 if 5..P-QKt4. W-Alt.
White Black Transp.White Black 1. P-K4 P-K4 (1.) 2. Kt-KB3 Kt-QB3 (2.) 3. Kt-B3 Kt-B3 (3. B-Kt5 P-QR3) 4. B-Kt5 P-QR3 (4. B-R4 Kt-B3) 5. B-R4 (5. Kt-B3 )
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