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 MedalSergiochess76311 Russian Federation 2115
Silver Medalbyakuugan148414 United States 2112
Bronze MedalFaramir (IM)79286 Argentina 2102
4Improchess85272 Spain 2086
5LuisPSupi6075 Brazil 2080
6blueeyed7879 Israel 2062
7gloomy86den26100 United States 2026
8KSMekhitarian11131 Brazil 2021
9alfilazo8100 Peru 2014
10Asterix19636 Norway 2013

7 actions this minute
TacticianCountryRatingProblemRatingTime [s]
drumpet United States 1518p42733 1610
Vespasian United States 1414p54402 15012.5
drumpet United States 1519p36098 165357.7
sam8493 United Nations 1618p35756 16865.2
Vespasian United States 1414p44702 14176.2
sam8493 United Nations 1618p34612 1939
Vespasian United States 1414p24529 12326.0

Welcome !
Latest 24h newbies
coldkevUnited Nations
Mike85612344United Nations
mijailtacticUnited Nations
dbbtacticUnited Nations
kyawmyohanUnited Nations
aramoorUnited Nations
fujiappleUnited Nations
carlosDavila14United Nations
2017-06-28 00:35 CEST (GMT +0200)
Chess Tactics Server has served
110,060,779 problems to
86,410 registered tacticians from 143 countries.