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 MedalLuisPSupi6843 Brazil 2100
Bronze Medalnamber34 Philippines 2077
4kleate94 Philippines 2073
5byakuugan148925 United States 2072
6Sergiochess78084 Russian Federation 2062
7tzzzzz3173 Armenia 2051
8UriBlass171070 Israel 2043
9andey37 United States 2042
10Improchess89513 Spain 2042

0 actions this minute
TacticianCountryRatingProblemRatingTime [s]

Welcome !
Latest 24h newbies
sharky77United States
mohcUnited Nations
elvatno123United Nations
ovcinkinsUnited Nations
2017-10-23 09:35 CEST (GMT +0200)
Chess Tactics Server has served
110,957,949 problems to
88,023 registered tacticians from 143 countries.