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 Medalmorpy131702 Spain 2265
Bronze Medalfastkicker11784 France 2244
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

13 actions this minute
TacticianCountryRatingProblemRatingTime [s]
mamut Czech Republic 1448p30508 15698.3
kalol United Nations 1429p59673 13512.6
mviglian Italy 1438p31469 1623
Croney United Kingdom 1452p20823 1580
mamut Czech Republic 1447p38291 15598.4
kalol United Nations 1428p15396 13314.6
Hehmer Germany 1736p17558 15508.8
wxcvbn France 1350p28467 12434.5
kalol United Nations 1428p35513 13938.0
Croney United Kingdom 1481p21619 1411
mamut Czech Republic 1450p06676 1398
onaznam France 1318p37591 12164.5
wxcvbn France 1350p05315 1542

Welcome !
Latest 24h newbies
IvrydavidUnited Nations
DolphinXUnited Nations
UrsaMinorUnited States
jesusd1234United Nations
jesus1234United Nations
jesusd123United Nations
FeverdogUnited Nations
nvielUnited Nations
UrsaMajorUnited Nations
moiseslaoudUnited Nations
2015-03-29 15:35 CEST (GMT +0200)
Chess Tactics Server has served
101,040,272 problems to
76,910 registered tacticians from 143 countries.