Overview
Genre
| Fairies | 11 | Overview | Omit | Problems |
| Retro | 3 | Overview | Omit | Problems |
Authors
| Heer, Joost | 14 | Overview | Omit | Problems |
| Ring, Ulrich | 1 | Overview | Omit | Problems |
Sources
| feenschach | 6 | Overview | Omit | Problems |
| Die Schwalbe | 3 | Overview | Omit | Problems |
| ChessProblems.ca | 1 | Overview | Omit | Problems |
| idee & form | 1 | Overview | Omit | Problems |
| Phenix | 1 | Overview | Omit | Problems |
| Problemkiste | 1 | Overview | Omit | Problems |
| Springaren | 1 | Overview | Omit | Problems |
| StrateGems | 1 | Overview | Omit | Problems |
Keywords
| Circe | 8 | Overview | Omit | Problems |
| Serienzüger | 7 | Overview | Omit | Problems |
| Allumwandlung | 5 | Overview | Omit | Problems |
| Kindergarten-Problem | 5 | Overview | Omit | Problems |
| Miniatur | 3 | Overview | Omit | Problems |
| Umwandlung | 3 | Overview | Omit | Problems |
| Vogtländer Schach | 2 | Overview | Omit | Problems |
| Leo-Familie | 2 | Overview | Omit | Problems |
| Cavalier majeur | 2 | Overview | Omit | Problems |
| Eindeutige Beweispartie | 2 | Overview | Omit | Problems |
| Exzelsior | 1 | Overview | Omit | Problems |
| Homebase | 1 | Overview | Omit | Problems |
| Idealmatt | 1 | Overview | Omit | Problems |
| Alphabetschach | 1 | Overview | Omit | Problems |
| Aristokrat | 1 | Overview | Omit | Problems |
| Babson-Task | 1 | Overview | Omit | Problems |
| Alleinunterhalter | 1 | Overview | Omit | Problems |
| konsekutive Umwandlungen 5 | 1 | Overview | Omit | Problems |
| Minimal | 1 | Overview | Omit | Problems |
| Ohneschlag | 1 | Overview | Omit | Problems |
| Platzwechsel | 1 | Overview | Omit | Problems |
| Pronkin-Thema | 1 | Overview | Omit | Problems |
| Rex solus | 1 | Overview | Omit | Problems |
| Rochade | 1 | Overview | Omit | Problems |
| Madrasi | 1 | Overview | Omit | Problems |
| Spukschach | 1 | Overview | Omit | Problems |
Pieces
| Skylla | 2 | Overview | Omit | Problems |
Computer tested
| C+ | 14 | Overview | Omit | Problems |
Cooked
| not cooked | 14 | Overview | Omit | Problems |
https://pdb.dieschwalbe.de/overview.jsp?expression=COMMENTDATE%3E%3D20220810+AND+CPLUS++AND+A%3D%27Heer%2C+Joost%27