(B41) Reti
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4
(B41) Bronstein
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Bc2