---
license: lgpl-3.0
tags:
- chess
- cdb
pretty_name: Static dumps of chessdb.cn
viewer: false
---

# Static dumps of chessdb.cn (cdb)

This is a collection of static dumps of [chessdb.cn](https://chessdb.cn/queryc_en/), the largest online database 
of chess positions and openings. The dumps can be probed with the help of [cdbdirect](https://github.com/vondele/cdbdirect).

## Statistics

|                 |    20240814 |    20241114 |
| :-------------- | ----------: | ----------: |
| Positions       | 44262943988 | 46456113101 | 
| Size            |       821GB |       808GB |