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ChessDB.cz is an online chess game database and pre-game preparation analysis platform aimed at Czech/Slovak chess players. It describes itself as the No. 1 chess game database in the Czech Republic, covering 500,000+ games, and emphasizes its automated system for continuously collecting PGNs from Czech tournaments and team competitions. This makes it suitable for finding games by local players that may not necessarily be included in other international databases.
The platform is centered on “pre-match opponent research”: you can search a player’s complete games and filter by color, result, year, ELO, ECO, opponent, and more. It supports position/FEN search, opening success-rate statistics, a move tree, a built-in game viewer, and Stockfish analysis. PREMIUM/ULTRA also offer bulk PGN export, cloud storage for your own games, AI Coach game review, and ChessDB AI-generated opponent style profiles, weaknesses, and preparation plans. There is also a Chrome extension that enables one-click preparation from Chess-Results. For developers, it provides a REST API with Bearer Token authentication, HTTPS, rate limiting, pagination, and multilingual code examples.
The web version lists PREMIUM at 159 Kč/month and ULTRA at 199 Kč/month. Annual billing offers first-year discounts: PREMIUM at 290 Kč and ULTRA at 590 Kč, followed by 69/109 Kč per month respectively. The text also mentions older or alternative plans such as 29/59/99 Kč per month, so you should verify the current pricing before purchasing. The API is a separate subscription: 299, 599, or 900 Kč/month.
The advantages are deep local game coverage, automated updates, a complete preparation workflow, and support for PGN and API integration. The downsides are that the platform is mainly in Czech, and the official mobile experience may be incomplete; user feedback also mentions that some games load rather slowly. The official site acknowledges that PGN sources may lead to data inconsistencies and require manual correction.
It is suitable for players, coaches, clubs, and developers who participate in Czech/Slovak chess events or want to integrate chess game data. For users in China, the site’s connectivity cannot be determined from the available text and should be marked as unknown. In addition, because the content and database are highly region-specific, its value is lower for players outside the European local chess scene.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on chessdb.cz official site.
chessdb.cz is an Czechia API & Data provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of Limited (proxy recommended). Click "Visit Official Site" to reach chessdb.cz directly.