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 Medalhustak25763 Norway 2343
Silver Medalfastkicker12492 France 2265
Bronze MedalErlendm66931 Norway 2209
4Sergiochess69900 Russian Federation 2101
5byakuugan146170 United States 2100
6Faramir (IM)77891 Argentina 2089
7aryantari21184 Norway 2080
8LuisPSupi3612 Brazil 2042
9Improchess73344 Spain 2034
10Aaron24770 United States 2029

8 actions this minute
TacticianCountryRatingProblemRatingTime [s]
OMGROFL United Nations 1712p18489 16322.5
dave43ish United Kingdom 1659p14094 15707.6
OMGROFL United Nations 1713p00454 1837
dave43ish United Kingdom 1658p64368 16368.0
mamut Czech Republic 1423p40025 1439
dave43ish United Kingdom 1661p45519 1814
OMGROFL United Nations 1715p46947 1547
mamut Czech Republic 1421p16197 15448.2

Welcome !
Latest 24h newbies
100000United Nations
Project100000United Nations
Anton1945United Nations
escorpion29United Nations
fmbrianUnited Nations
MaestropeadoUnited Nations
stinky1United Nations
KaijuUnited Nations
elmer1United Nations
agelarUnited Nations
2016-06-30 14:05 CEST (GMT +0200)
Chess Tactics Server has served
106,981,864 problems to
82,197 registered tacticians from 143 countries.