# Hans-Otto Herr

> correspondence chess player

**Wikidata**: [Q65697903](https://www.wikidata.org/wiki/Q65697903)  
**Source**: https://4ort.xyz/entity/hans-otto-herr


## References

1. Mathematics Genealogy Project
2. ICCF correspondence chess player database
3. [Source](https://www.iccf.com/userfiles/files/2012%20IM(1).pdf)