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---
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 | 20250608 | 20251115 |
| :-------------- | ----------: | ----------: | ----------: | -----------: |
| Positions | 44262943988 | 46456113101 | 48454315961 | 53035759834 |
| Scored moves | 88251700855 | 92617595285 | 96605581079 | 128743456819 |
| Size | 821GB | 808GB | 846GB | 997GB |
<!--
Final count: 44262943988
Have min ply: 28819025984
Have single move: 35381149368
Total scored moves: 88251700855
Final count: 46456113101
Have min ply: 40646578967
Have single move: 37095836123
Total scored moves: 92617595285
Exact count: 48454315961
Have min ply: 42635854870
Have single move: 38668601698
Total scored moves: 96605581079
Final count: 53035759834
Have min ply: 49670372959
Have single move: 34857596299
Total scored moves: 128743456819
-->
|