# Rolf Knobel

> Swiss physicist and chess player

**Wikidata**: [Q15435161](https://www.wikidata.org/wiki/Q15435161)  
**Source**: https://4ort.xyz/entity/rolf-knobel


## References

1. ICCF correspondence chess player database
2. Virtual International Authority File
3. ratings.fide.com
4. OlimpBase
5. [Source](https://www.iccf.com/userfiles/files/2012%20GM.pdf)