Overview
Genre
| Retro | 12 | Overview | Omit | Problems |
Authors
| Heinonen, Unto | 12 | Overview | Omit | Problems |
Sources
| Die Schwalbe | 5 | Overview | Omit | Problems |
| feenschach | 4 | Overview | Omit | Problems |
| StrateGems | 3 | Overview | Omit | Problems |
| Probleemblad | 2 | Overview | Omit | Problems |
| Springaren | 1 | Overview | Omit | Problems |
| 64 Proof Games | 1 | Overview | Omit | Problems |
| Suomen Tehtäväniekat | 1 | Overview | Omit | Problems |
| The Problemist | 1 | Overview | Omit | Problems |
| U.S. Problem Bulletin | 1 | Overview | Omit | Problems |
| FIDE Album 1992-1994 | 1 | Overview | Omit | Problems |
| FIDE Album 1995-1997 | 1 | Overview | Omit | Problems |
| FIDE Album Annexe 1995-1997 | 1 | Overview | Omit | Problems |
| FIDE Album Annexe 1998-2000 | 1 | Overview | Omit | Problems |
Keywords
| Eindeutige Beweispartie | 12 | Overview | Omit | Problems |
| Ornament | 12 | Overview | Omit | Problems |
| Rochade | 2 | Overview | Omit | Problems |
| Schlagfrei | 2 | Overview | Omit | Problems |
| Umwandlung | 1 | Overview | Omit | Problems |
| Cross-capture | 1 | Overview | Omit | Problems |
| Platzwechsel | 1 | Overview | Omit | Problems |
| Homebase | 1 | Overview | Omit | Problems |
| Nicht-Partiesatzmaterial | 1 | Overview | Omit | Problems |
Computer tested
| C+ | 12 | Overview | Omit | Problems |
Cooked
| not cooked | 12 | Overview | Omit | Problems |
https://pdb.dieschwalbe.de/overview.jsp?expression=A%3D%27Heinonen%27+AND+K%3D%27Ornament%27