Chess Tactics Server

Currently we provide 36,869 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 MedalTomsebollJR165 Sweden 2223
Silver Medalmorpy114886 Spain 2205
Bronze MedalErlendm36482 Norway 2189
4tomseboll55114 Sweden 2141
5alfilazo7469 Peru 2121
6byakuugan134169 United States 2119
7Sergiochess66865 Russian Federation 2105
8Faramir (IM)74440 Argentina 2104
9cactus82713 United Nations 2062
10Aaron24304 United States 2061

13 actions this minute
TacticianCountryRatingProblemRatingTime [s]
javis9 Colombia 1532p09309 136411.4
jomajo Latvia 1196p27307 1127
superflaco Colombia 1772p47438 16765.5
agustinortiz Argentina 1216p44288 10245.0
jomajo Latvia 1196p20675 117110.1
Tigrego Cambodia 1633p03534 17634.0
rakko Japan 1426p51410 152926.9
superflaco Colombia 1772p31155 1970
agustinortiz Argentina 1224p13014 108212.0
Tigrego Cambodia 1629p08088 18976.3
perseverent Romania 1455p32599 162613.4
superflaco Colombia 1774p12157 1734
micjamkid United Nations 1517p29361 14495.6

Welcome !
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2014-12-18 16:20 CET (GMT +0100)
Chess Tactics Server has served
99,287,242 problems to
75,433 registered tacticians from 143 countries.