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 MedalErlendm70564 Norway 2253
Bronze Medalbyakuugan148640 United States 2129
4Faramir (IM)79619 Argentina 2126
5LuisPSupi6211 Brazil 2122
6blueeyed9094 Israel 2090
7kaked23 Philippines 2082
8Sergiochess77600 Russian Federation 2071
9qeggar30 Philippines 2071
10mnarciso (GM)27825 Spain 2068

7 actions this minute
TacticianCountryRatingProblemRatingTime [s]
rommulus Indonesia 1263p34601 139530.8
gaspar Brazil 1306p51687 12866.6
Asterix Norway 1898p15434 18642.8
gaspar Brazil 1303p27307 11302.3
gaspar Brazil 1299p41584 11683.0
Asterix Norway 1894p05098 18202.2
gaspar Brazil 1306p09278 121434.7

Welcome !
Latest 24h newbies
2017-08-18 16:10 CEST (GMT +0200)
Chess Tactics Server has served
110,456,952 problems to
87,019 registered tacticians from 143 countries.