Chess Tactics Server

Currently we provide 36,868 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 MedalErlendm52302 Norway 2293
Silver Medalfastkicker11812 France 2266
Bronze Medalmorpy131702 Spain 2265
4byakuugan136674 United States 2134
5tomseboll55220 Sweden 2130
6Lazarillo2522 United States 2119
7stefanp76089 Romania 2098
8Sergiochess68582 Russian Federation 2085
9bogdanovich2014 Romania 2053
10themaheide (GM)4857 Greece 2039

14 actions this minute
TacticianCountryRatingProblemRatingTime [s]
JSoler Spain 1455p42732 15689.3
alfiereinc4 Italy 1266p20674 1290
Bogdanel Romania 1541p13445 13729.7
pastrka Czech Republic 1551p51752 1674
Kolvin51 Russian Federation 1754p61197 15655.1
pastrka Czech Republic 1550p21654 14804.3
Bogdanel Romania 1542p43020 1659
Kolvin51 Russian Federation 1751p14554 16162.2
alfiereinc4 Italy 1266p34186 1471
pastrka Czech Republic 1550p30905 14497.4
JSoler Spain 1456p13788 146210.7
Bogdanel Romania 1541p56429 14545.1
pastrka Czech Republic 1550p35035 16009.2
Kolvin51 Russian Federation 1753p38207 1997

Welcome !
Latest 24h newbies
IvrydavidUnited Nations
DolphinXUnited Nations
UrsaMinorUnited States
jesusd1234United Nations
jesus1234United Nations
jesusd123United Nations
FeverdogUnited Nations
2015-03-29 21:25 CEST (GMT +0200)
Chess Tactics Server has served
101,045,669 problems to
76,913 registered tacticians from 143 countries.