In BQXBXXXX the Stairway opening 1.b3 b6 2. c4 c5 is very good.
BQNBNRKR, the main line : 3. d4 cxd4 4. Bxd4 e5 5. Bb2 Nf6
In BQXBXXXX the Stairway opening 1.b3 b6 2. c4 c5 is very good.
BQNBNRKR, the main line : 3. d4 cxd4 4. Bxd4 e5 5. Bb2 Nf6