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 MedalErlendm35488 Norway 2245
Silver Medalfastkicker11456 France 2208
Bronze Medalbyakuugan132655 United States 2132
4Soryu74682 Japan 2114
5morpy110343 Spain 2104
6Faramir (IM)74339 Argentina 2103
7cactus81392 United Nations 2054
8Lazarillo424 United States 2050
9aryantari6917 Norway 2041
10blueeyed3134 United Nations 2034

7 actions this minute
TacticianCountryRatingProblemRatingTime [s]
Tiger4life Russian Federation 1560p17757 154911.6
rakko Japan 1404p57365 162835.1
Michal7 Poland 1470p56911 1599
betaben United Nations 1553p09620 14504.1
Michal7 Poland 1468p11853 13653.3
knightf3 Sweden 1359p21673 1548
Michal7 Poland 1468p08805 155010.0

Welcome !
Latest 24h newbies
teepeeUnited Nations
jojopachevUnited Nations
mercu40United Nations
BimboMinkiaUnited Nations
ilsemUnited Nations
cloudychessUnited States
Semjaza74United Nations
cfondeurUnited Nations
2014-11-23 09:15 CET (GMT +0100)
Chess Tactics Server has served
98,841,522 problems to
75,034 registered tacticians from 143 countries.