# Colle System

> chess opening characterized by d4, Nf3, e3, Bd3, c3

**Wikidata**: [Q606438](https://www.wikidata.org/wiki/Q606438)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Colle_System)  
**Source**: https://4ort.xyz/entity/colle-system


## References

1. Integrated Authority File