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 MedalSergiochess70579 Russian Federation 2141
Bronze MedalLazarillo3350 United States 2121
4byakuugan146363 United States 2110
5Faramir (IM)78357 Argentina 2100
6Aaron24780 United States 2084
7LuisPSupi3835 Brazil 2042
8kuba33129 Czech Republic 2032
9LTPNJ13152 United States 2015
10Yaranaika80245 Japan 2011

6 actions this minute
TacticianCountryRatingProblemRatingTime [s]
Vitruvio Spain 1391p07708 151012.0
pipefroide France 1059p13792 1217
oldraven Latvia 1317p59105 137545.6
Vitruvio Spain 1391p55428 13629.2
orobas United Nations 1670p61179 15547.4
Vitruvio Spain 1392p12848 1472

Welcome !
Latest 24h newbies
killzogUnited Nations
epachamoUnited Nations
PaulohenriquesUnited Nations
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BGCrochUnited Nations
JuanFelipeMoraUnited Nations
Bryan00United Nations
Bryan2016United Nations
RessoucheALUnited Nations
2016-07-23 11:05 CEST (GMT +0200)
Chess Tactics Server has served
107,236,275 problems to
82,534 registered tacticians from 143 countries.