Chess Tactics Server

Currently we provide 36,868 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 MedalErlendm55991 Norway 2300
Silver Medalmjehehe8575 Norway 2234
Bronze Medalfastkicker11941 France 2211
4morpy133162 Spain 2206
5hmmm6458 Norway 2171
6Lazarillo2662 United States 2153
7byakuugan138227 United States 2115
8stefanp77443 Romania 2081
9aryantari12626 Norway 2067
10blitzmaniac188255 Serbia 2065

6 actions this minute
TacticianCountryRatingProblemRatingTime [s]
pensador Peru 1887p20976 163910.4
Linkville United States 965p18586 1610118.5
pensador Peru 1887p05609 16364.3
marioslp Brazil 1515p45077 13967.9
pensador Peru 1886p37378 18414.0
pensador Peru 1887p47131 1956

Welcome !
Latest 24h newbies
aleas3United Nations
GiamUnited States
roballegroUnited Nations
F0shcOUnited Nations
pedroamarizUnited Nations
Tesla37United Nations
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captainneedaUnited Nations
2015-05-23 03:05 CEST (GMT +0200)
Chess Tactics Server has served
101,906,464 problems to
77,583 registered tacticians from 143 countries.