Check Check
| White | Black | |
|---|---|---|
| Check Check | Ulysses | View |
| Nimzo | Check Check | View |
| Check Check | Schach | View |
| Check Check | Diogenes | View |
| Zugzwang | Check Check | View |
| Check Check | Analyst | View |
| Check Check | Psion | View |
| Check Check | M. Chess | View |
| Check Check | Nightmare | View |
| Delta | Check Check | View |
| Check Check | Nest | View |
| Echecs | Check Check | View |
| Check Check | Gideon | View |