Key Modern Steinitz Lines for White
Main system: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3
Opening moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3. Black again plays an early ...d6, but White uses 5.c3 to stay in familiar Ruy Lopez territory.
White prepares to play d4 under good circumstances and follows typical Closed Spanish plans, while Black chooses between 5...Bd7, 5...b5 and the sharp 5...f5 Siesta Variation.
Main system: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.c3