Listing changes
Every change to the Hamburg guide, or to the rules it follows, is recorded here with its date, newest first.
There are four kinds of line: data (entries added or revised), correction (something a reader reported), wording (the text of the site) and method (the way entries are made).
| Date | Change | |
|---|---|---|
| Launch | Hamburg Chess opens with 86 entries, 86 of them active or awaiting a newer trace; every page behind them was opened on 21 October 2026. | |