Chess Tactics Server

Currently we provide 36,863 tactical chess problems ranging in difficulty from trivial to ambitious. Your tactical performance will be measured by the Glicko rating system wich takes into account both the difficulty of each problem and the time you take to solve it.

You can sign in as guest completely anonymous to get familiar with the chess board interface, browse some problems or just look around. You just need a valid email address to register and join our community.

 Guía de utilización en Español by GM ICCF Roberto Alvarez

This is a non-commercial service created and supported by chess enthusiasts from our chess club in Berlin, Germany. It is still under construction. Everyone is invited to participate in its development. Please don't use your skills to attack this server, but to detect and remove possible exploits.


Top 10 active tacticians
Gold Medalhmmm9306 Norway 2362
Silver MedalErlendm70511 Norway 2266
Bronze Medalbyakuugan148640 United States 2129
4Faramir (IM)79619 Argentina 2126
5LuisPSupi6211 Brazil 2122
6blueeyed9086 Israel 2086
7kaked22 Philippines 2075
8Sergiochess77600 Russian Federation 2071
9mnarciso (GM)27825 Spain 2068
10qeggar29 Philippines 2061

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2017-08-16 19:20 CEST (GMT +0200)
Chess Tactics Server has served
110,447,613 problems to
87,015 registered tacticians from 143 countries.