Jongsma
| White | Black | |
|---|---|---|
| Jongsma | J. Van Geemen | View |
| Jongsma | Hartoch | View |
| Weyerstrass | Jongsma | View |
| Jongsma | Carlier | View |
| Jongsma | De Ruiter | View |
| Zuidema | Jongsma | View |
| Pirc | Jongsma | View |
| Theodor Ghitescu | Jongsma | View |
| Jongsma | Van den Berg | View |
| Jongsma | Troger | View |
| Jongsma | Haygarth | View |
| Puig | Jongsma | View |
| Bernard De Bruycker | Jongsma | View |
| Jongsma | Steniczka | View |
| Donner | Jongsma | View |
| Jongsma | Wade | View |
| Jongsma | Gufeld | View |
| Ghitescu | Jongsma | View |