Chess Tactics Server

Currently we provide 36,869 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 MedalTomsebollJR165 Sweden 2223
Silver MedalErlendm36505 Norway 2201
Bronze Medalmorpy115873 Spain 2192
4tomseboll55114 Sweden 2141
5alfilazo7469 Peru 2121
6byakuugan134199 United States 2111
7Sergiochess66865 Russian Federation 2105
8Faramir (IM)74440 Argentina 2104
9cactus82713 United Nations 2062
10Aaron24304 United States 2061

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Latest 24h newbies
MaulanaUnited Nations
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2014-12-20 08:20 CET (GMT +0100)
Chess Tactics Server has served
99,310,834 problems to
75,450 registered tacticians from 143 countries.