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 MedalErlendm69038 Norway 2301
Silver MedalLuisPSupi5479 Brazil 2106
Bronze Medalaryantari21385 Norway 2105
4byakuugan147125 United States 2091
5LLLLL70614 Hong Kong 2040
6gloomy86den25291 United States 2026
7AndyG33430 Norway 2008
8farenh59 Philippines 2002
9eastern41185 Philippines 1988
10JTanReborn4935 Australia 1987

4 actions this minute
TacticianCountryRatingProblemRatingTime [s]
behrooz United Nations 1937p20517 15922.3
Kitzune Canada 1200p21995 12719.2
Kitzune Canada 1202p23326 109515.0
Kitzune Canada 1201p60943 11085.7

Welcome !
Latest 24h newbies
PoffliUnited Nations
KingGe0rgeUnited Nations
Chrisca408United Nations
grsplaneUnited Nations
kkulsekhar1974United Nations
randomepUnited Nations
kulsekhar1974United Nations
SilverAchanUnited States
2017-02-23 21:40 CET (GMT +0100)
Chess Tactics Server has served
109,240,949 problems to
85,345 registered tacticians from 143 countries.