A. Sibbing
| White | Black | |
|---|---|---|
| A. Sibbing | Weyerstrass | View |
| A. Sibbing | Weyerstrass | View |
| Weyerstrass | A. Sibbing | View |
| Weyerstrass | A. Sibbing | View |
| Weyerstrass | A. Sibbing | View |
| White | Black | |
|---|---|---|
| A. Sibbing | Weyerstrass | View |
| A. Sibbing | Weyerstrass | View |
| Weyerstrass | A. Sibbing | View |
| Weyerstrass | A. Sibbing | View |
| Weyerstrass | A. Sibbing | View |