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 Medalhustak25409 Norway 2325
Silver Medalfastkicker12452 France 2305
Bronze MedalFaramir (IM)77632 Argentina 2114
4byakuugan145702 United States 2099
5LuisPSupi3011 Brazil 2073
6Soryu75652 Japan 2064
7aryantari20882 Norway 2038
8LLLLL57159 Hong Kong 2025
9Fedex3626 Argentina 2000
10Improchess72203 Spain 1992

10 actions this minute
TacticianCountryRatingProblemRatingTime [s]
mamut Czech Republic 1435p48958 13592.2
hustak Norway 2325p09868 15953.3
1guadalajara Spain 948p43805 125533.3
Henry2 United Kingdom 1369p45922 13955.8
mamut Czech Republic 1431p53021 14253.3
hustak Norway 2324p19316 19070.9
hustak Norway 2323p17067 17900.6
Henry2 United Kingdom 1369p51987 1615
mamut Czech Republic 1435p43463 1421
1guadalajara Spain 948p28426 97610.4

Welcome !
Latest 24h newbies
roadrunner605United Nations
BionicJaguarUnited Nations
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a9b8c7d6United Nations
lucid13333United Nations
ericdavis123United States
yichongUnited Nations
eadmundUnited Nations
joaolpUnited Nations
Jackson1843United Nations
2016-05-26 14:25 CEST (GMT +0200)
Chess Tactics Server has served
106,627,042 problems to
81,803 registered tacticians from 143 countries.