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 MedalErlendm75478 Norway 2260
Silver Medalbleaber36 Philippines 2154
Bronze Medalbyakuugan148854 United States 2104
4LuisPSupi6812 Brazil 2098
5kleate94 Philippines 2073
6Sergiochess78084 Russian Federation 2062
7tzzzzz3149 Armenia 2055
8andey37 United States 2042
9Improchess89490 Spain 2040
10watters1977 United Nations 2040

4 actions this minute
TacticianCountryRatingProblemRatingTime [s]
bulb Belgium 1712p18226 180512.9
dimava Belgium 1627p44845 1621
bulb Belgium 1713p55702 163919.6
dimava Belgium 1627p18998 157012.4

Welcome !
Latest 24h newbies
horus1311United Nations
volvoS70T5United States
jthomporterUnited States
damita87United Nations
2017-10-20 15:55 CEST (GMT +0200)
Chess Tactics Server has served
110,936,597 problems to
87,989 registered tacticians from 143 countries.