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 MedalErlendm67436 Norway 2282
Silver MedalSergiochess70627 Russian Federation 2131
Bronze MedalLazarillo3350 United States 2121
4byakuugan146380 United States 2106
5Faramir (IM)78357 Argentina 2100
6Aaron24780 United States 2084
7Soryu75778 Japan 2056
8LuisPSupi3835 Brazil 2042
9Improchess75148 Spain 2042
10aryantari21300 Norway 2041

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2016-07-27 03:05 CEST (GMT +0200)
Chess Tactics Server has served
107,278,095 problems to
82,570 registered tacticians from 143 countries.