Wrong.Anthony.R.Brown wrote:The Main (A.R.B.C.S) Opening line...
1. e4 e6 2. d4 d6 3. Nf3 h6 4. Nc3 a6 5. Bd3 g6 6. O-O b6 7. Be3 Bg7
8. Qd2 Bb7 9. d5 e5
The Main (HIPPO) Defence Opening Line...
1. e4 Nh6 2. d4 g6 3. c4 f6
Completely Different!...No Official Chess Database has The Main (A.R.B.C.S) Opening line.
The (A.R.B.C.S) is a System!
The Main (HIPPO) is an Opening!
You Obviously have not Read the Video!
1. e4 e6 2. d4 d6 3. Nf3 h6 4. Nc3 a6 5. Bd3 g6 6. O-O b6 7. Be3 Bg7
8. Qd2 Bb7 9. d5 e5 = ECO C00 Lengfellner System
My database has it, and it's an official database..
Peter