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 MedalErlendm68879 Norway 2319
Silver Medalbyakuugan146942 United States 2160
Bronze MedalLazarillo3431 United States 2123
4LuisPSupi5407 Brazil 2085
5LLLLL67264 Hong Kong 2042
6Improchess81783 Spain 2031
7dated526 Philippines 1982
8KSMekhitarian8046 Brazil 1980
9AndyG33420 Norway 1972
10MrJedi4977 Norway 1971

12 actions this minute
TacticianCountryRatingProblemRatingTime [s]
albator974 France 1284p05158 11675.5
matekp15 Colombia 1768p38658 161410.2
egilarne Norway 1461p41113 14425.2
icke Germany 1653p12157 173613.7
ettan Norway 1199p33772 11988.8
boca34 Armenia 1501p06153 1409
boca34 Armenia 1503p61915 150219.6
icke Germany 1652p18345 15396.1
ettan Norway 1197p22859 11877.5
egilarne Norway 1458p20567 15175.7
icke Germany 1651p13008 16737.5
matekp15 Colombia 1762p02808 18740.8

Welcome !
Latest 24h newbies
DahlgrenUnited Nations
2017-01-17 22:15 CET (GMT +0100)
Chess Tactics Server has served
108,915,119 problems to
84,939 registered tacticians from 143 countries.