Overview
Genre
| Retro | 7 | Overview | Omit | Problems |
| Fairies | 4 | Overview | Omit | Problems |
Authors
| Heinonen, Unto | 11 | Overview | Omit | Problems |
| Bursac, Boris | 1 | Overview | Omit | Problems |
| Schiegl, Hansjörg | 1 | Overview | Omit | Problems |
| Olausson, Michel | 1 | Overview | Omit | Problems |
Sources
| Problemkiste | 6 | Overview | Omit | Problems |
| Die Schwalbe | 4 | Overview | Omit | Problems |
| feenschach | 4 | Overview | Omit | Problems |
| Quartz | 3 | Overview | Omit | Problems |
| Probleemblad | 3 | Overview | Omit | Problems |
| 64 Proof Games | 2 | Overview | Omit | Problems |
| StrateGems | 2 | Overview | Omit | Problems |
| Tim Krabbé's Website | 1 | Overview | Omit | Problems |
| diagrammes | 1 | Overview | Omit | Problems |
| Shortest Proof Games | 1 | Overview | Omit | Problems |
| Springaren | 1 | Overview | Omit | Problems |
| FIDE Album 1989-1991 | 1 | Overview | Omit | Problems |
| FIDE Album 1995-1997 | 1 | Overview | Omit | Problems |
Keywords
| Rückkehr | 10 | Overview | Omit | Problems |
| Eindeutige Beweispartie | 7 | Overview | Omit | Problems |
| Serienzüger | 4 | Overview | Omit | Problems |
| Zuglängenrekord | 3 | Overview | Omit | Problems |
| Umwandlung | 2 | Overview | Omit | Problems |
| Circe | 2 | Overview | Omit | Problems |
| Räumung mit Bahnung | 2 | Overview | Omit | Problems |
| Rex solus | 2 | Overview | Omit | Problems |
| Rochade | 1 | Overview | Omit | Problems |
| Reiner Rundlauf | 1 | Overview | Omit | Problems |
| Donati-Thema | 1 | Overview | Omit | Problems |
| Bahnung | 1 | Overview | Omit | Problems |
| Bichromes Schach | 1 | Overview | Omit | Problems |
| Exzelsior | 1 | Overview | Omit | Problems |
| Kindergarten-Problem | 1 | Overview | Omit | Problems |
| Miniatur | 1 | Overview | Omit | Problems |
| Minimal | 1 | Overview | Omit | Problems |
| Nicht-Partiesatzmaterial | 1 | Overview | Omit | Problems |
| Phönix | 1 | Overview | Omit | Problems |
| Platzwechsel | 1 | Overview | Omit | Problems |
| Platzwechselcirce | 1 | Overview | Omit | Problems |
| Randzüger | 1 | Overview | Omit | Problems |
| Unterverwandlung | 1 | Overview | Omit | Problems |
| Rückkehr nach Umwandlung | 1 | Overview | Omit | Problems |
| Rundlauf | 1 | Overview | Omit | Problems |
Computer tested
| C+ | 10 | Overview | Omit | Problems |
| not C+ | 1 | Overview | Omit | Problems |
Cooked
| not cooked | 11 | Overview | Omit | Problems |
https://pdb.dieschwalbe.de/overview.jsp?expression=A%3D%27Heinonen%27+AND+K%3D%27R%C3%BCckkehr%27