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 MedalErlendm35669 Norway 2231
Silver Medalbyakuugan132765 United States 2131
Bronze MedalSoryu74682 Japan 2114
4Faramir (IM)74339 Argentina 2103
5morpy110596 Spain 2093
6cactus81913 United Nations 2070
7Lazarillo424 United States 2050
8blueeyed3801 United Nations 2044
9stefanp73032 Romania 2029
10tzzzzz2526 Armenia 2028

11 actions this minute
TacticianCountryRatingProblemRatingTime [s]
chesstalker Kenya 1536p06630 166112.5
ungranmexicano Mexico 1419p54520 15639.7
Cultus United Nations 1754p12146 16351.7
Edive21 United States 1153p37791 14647.5
ungranmexicano Mexico 1418p21368 13324.6
Cultus United Nations 1754p44423 15720.9
Edive21 United States 1157p52493 1350
Cultus United Nations 1753p58872 16943.4
ungranmexicano Mexico 1418p62110 12575.3
Edive21 United States 1153p02655 10624.8
Cultus United Nations 1752p17923 16220.9

Welcome !
Latest 24h newbies
ihatebarracudaUnited Nations
kopongUnited Nations
75GreLatUnited States
LongshanksUnited Kingdom
qcoderUnited States
jak3467United Nations
yuzirneymUnited Nations
Arhitector182United Nations
zirgsUnited Nations
obear203United Nations
cmpentaUnited States
QuelstUnited Nations
2014-11-29 08:05 CET (GMT +0100)
Chess Tactics Server has served
98,951,423 problems to
75,128 registered tacticians from 143 countries.