How entries are verified

What the directory covers

The area is the city of Warsaw, with its districts and neighbourhoods where a page names them, and the towns of the districts around it, among them Piaseczno, Konstancin-Jeziorna, Otwock, Marki, Zielonka, Legionowo, Pruszków, Raszyn, Grodzisk Mazowiecki, Błonie and Serock. An entry shows its town, and inside Warsaw the district when a source names one.

Nothing here is rated, ranked or paid for, and no entry is moved ahead of another. In each list the entries with the newest dated trace come first; places that closed or moved come last in the full list.

What is read for an entry

The first sources are the club list of the Mazovian chess association, with its calendars and event reports, and the central register of the Polish Chess Federation. The clubs’ and schools’ own sites follow; in Warsaw many of them publish a weekly timetable for the school year.

Tournaments are found through the FIDE list of rated tournaments and the ChessPoint directory, and café chess through the platform that organises it. Events with one title and one organiser are kept as a single series, with the newest and some earlier editions cited.

Every fact ends in a small number that leads to its source, with a short quotation in the language of that page and the day the page was read. Where two pages disagree, the entry says which one says what.

Source marks

A source is marked official when it comes from the place itself, its organiser or a chess federation; secondary when another party reports it, such as a tournament listing, a city events page or the press; and unverified when it rests on users or a single passing mention.

The mark tells who speaks, not whether they are right. A club in the association’s list is affiliated, which does not show that it meets this week, so a club known only from that list reads as not confirmed.

What stays blank

Warsaw clubs often print their training hours and leave out fees, and few say whether a visitor may simply drop in. Clubs known from a register or from tournament listings rarely have a street address. When no page gives an answer, the entry says “not stated by sources”; a blank is never a no.

Anyone who knows a page that fills a gap can send it through the form; it is checked, dated and added at the next revision.

What the directory does not judge

• No club, school, trainer or tournament is graded, scored or put in a ranking.
• Entries rest on published pages; nobody visits the clubs, cafés or halls for this directory.
• Fees are copied as printed on the day the page was read and may have changed.
• Timetables of school sports clubs change each September and can run ahead of an entry.
• The quality of teaching is not assessed; a trainer’s title is only checked against the FIDE database.
• Steps, lifts, heating, parking and similar practical matters are not checked.
• Attendance is not counted, so no entry says how full an evening is.
• A line in the federation register shows affiliation, not that a club plays today.

If an entry is about you

Club boards, organisers, trainers, café owners, parents and players can correct an entry through the form for clubs and cafés. A link to a page that shows the right information makes the change quick.

Each accepted correction is dated in the history of changes and noted on the entry. A club or person that prefers not to be listed can say so through the same form, and the entry is taken down at the next revision.

Dates and revisions

The pages behind the current entries were read between 23 October 2026 and 23 October 2026; each source carries its own date, so the age of every piece of evidence stays visible.

The whole directory is due to be read again about every 6 months. In between, a club may change its room or its days before the entry does; the organiser’s own page has the last word.

Who runs it

Chess in Warsaw is an independent editorial project. It takes no money from clubs, schools, cafés, organisers or leagues, carries no advertising for them, and has no tie to the Polish Chess Federation or the Mazovian chess association.

It exists because Warsaw chess is spread over an association list, a regional calendar, the FIDE tournament list, a café platform and many club and school sites, each holding one part of the picture. The form is how players and clubs can keep it accurate between revisions.

Using the data

The whole directory can be downloaded as a JSON dataset, one record per entry with all its sources, marks and dates. It is published under the Creative Commons Attribution 4.0 licence; please credit Chess in Warsaw when you reuse it.

For language models and other programs, a plain-text outline of the site is at llms.txt.

Considered and left out

Entries considered and not listed: 46. Most are clubs of the Mazovian association based in towns beyond the Warsaw area; the rest are one-off events at a single venue, first editions with nothing after them, pages with no chess activity of their own, and duplicates of another entry.

Map positions

An entry gets a map position only when its address was found as a building in the OpenStreetMap address search, or when a source gives a map position; a position found by search is marked approximate. An entry with an address and no position has a button that looks the address up on a map.

No position is set by hand, and the site has no map of its own. Map data © OpenStreetMap contributors, under the Open Database Licence.