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 MedalTomsebollJR165 Sweden 2223
Silver MedalErlendm36743 Norway 2212
Bronze Medalmorpy116481 Spain 2207
4tomseboll55114 Sweden 2141
5alfilazo7469 Peru 2121
6byakuugan134236 United States 2111
7Sergiochess66865 Russian Federation 2105
8Faramir (IM)74440 Argentina 2104
9Lazarillo536 United States 2097
10cactus82713 United Nations 2062

7 actions this minute
TacticianCountryRatingProblemRatingTime [s]
renm Japan 1600p62596 1649
fzvrwk United Kingdom 1404p51152 154714.3
Aichistar1 Italy 1372p50144 158313.4
deepankarmukh India 1528p05688 1541
renm Japan 1601p63923 1711
fzvrwk United Kingdom 1405p43059 154020.3
deepankarmukh India 1528p38437 162314.5

Welcome !
Latest 24h newbies
tiger60United Nations
icarus5555United Nations
greenbeanUnited States
vini10United Nations
2014-12-21 09:25 CET (GMT +0100)
Chess Tactics Server has served
99,327,170 problems to
75,463 registered tacticians from 143 countries.