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 Medalhmmm10019 Norway 2404
Silver MedalAkira4131 Norway 2316
Bronze MedalErlendm76257 Norway 2210
4Sergiochess78287 Russian Federation 2140
5LuisPSupi6964 Brazil 2136
6byakuugan149117 United States 2119
7blueeyed9629 Israel 2111
8kleate138 Philippines 2101
9valetguy227 Philippines 2101
10ticale50 Philippines 2076

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Latest 24h newbies
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2017-12-12 20:30 CET (GMT +0100)
Chess Tactics Server has served
111,264,024 problems to
88,372 registered tacticians from 143 countries.