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 MedalErlendm27636 Norway 2247
Silver Medalfastkicker10639 France 2225
Bronze MedalSergiochess66264 Russian Federation 2171
4morpy105705 Spain 2121
5byakuugan130474 United States 2082
6Lazarillo192 United States 2056
7tomseboll54829 Sweden 2050
8aryantari3965 Norway 2045
9MrJedi3370 Norway 2041
10Aaron23991 United States 2029

8 actions this minute
TacticianCountryRatingProblemRatingTime [s]
renm Japan 1637p63600 1756
Zefanya United Nations 1460p26086 1608
renm Japan 1637p38208 1570
c4m3 United States 1317p34011 12954.7
torrededama88 United Nations 1462p43757 160857.4
Zefanya United Nations 1460p46740 1878
renm Japan 1638p32750 149613.7
c4m3 United States 1312p17693 14394.6

Welcome !
Latest 24h newbies
MindworksUnited Nations
ChessieloloUnited States
gayathri6hUnited States
hustlinharperUnited Nations
cooltraneUnited Nations
2014-08-23 11:45 CEST (GMT +0200)
Chess Tactics Server has served
97,117,832 problems to
73,561 registered tacticians from 143 countries.