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 MedalErlendm68159 Norway 2265
Silver Medalbyakuugan146520 United States 2142
Bronze MedalLuisPSupi4210 Brazil 2123
4Sergiochess72568 Russian Federation 2114
5Improchess81022 Spain 2082
6morpy135922 Spain 2080
7tzzzzz2756 Armenia 2031
8LLLLL63217 Hong Kong 2025
9MrJedi4478 Norway 2004
10Soryu75916 Japan 2003

10 actions this minute
TacticianCountryRatingProblemRatingTime [s]
Vespasian United States 1288p21459 1432
VasKing Cyprus 1202p08688 115014.3
Vespasian United States 1289p40505 1330
StPauli1 Germany 1307p49231 1429
VasKing Cyprus 1217p04413 116520.7
cbatx Spain 1440p42098 1314
estunad Mexico 1504p35487 1608
apflug Germany 1600p26589 16177.6
StPauli1 Germany 1301p30037 14064.0
Vespasian United States 1288p01420 14592.1

Welcome !
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2016-09-26 17:30 CEST (GMT +0200)
Chess Tactics Server has served
107,845,558 problems to
83,333 registered tacticians from 143 countries.