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 MedalErlendm55023 Norway 2254
Silver Medalmorpy132915 Spain 2229
Bronze Medalmjehehe1634 Cambodia 2211
4pannkaka5258 Sweden 2146
5Asterix14215 Norway 2121
6byakuugan137274 United States 2105
7Karpachov1130 United Nations 2054
8Gliga2281 Brazil 2050
9aryantari11627 Norway 2044
10stefanp77063 Romania 2032

7 actions this minute
TacticianCountryRatingProblemRatingTime [s]
pastrka Czech Republic 1561p12505 169323.4
robych United Nations 1758p45831 18175.6
kamedula75 United Nations 1505p65233 15754.0
pastrka Czech Republic 1561p37663 168619.9
robych United Nations 1756p02623 181110.0
kamedula75 United Nations 1503p60482 13863.9
macdevos Netherlands 1529p04374 186829.1

Welcome !
Latest 24h newbies
slayz23United Nations
c0r3dump3dUnited Nations
toddbouUnited States
todbouUnited Nations
joaquingsUnited Nations
martinboUnited Nations
ebrehm2001United Nations
richardlaporteUnited Nations
indeedionUnited Nations
benjalsUnited Nations
u1012United Kingdom
Koufax32United Nations
ThankfulElbowUnited Nations
2015-05-05 10:10 CEST (GMT +0200)
Chess Tactics Server has served
101,634,599 problems to
77,402 registered tacticians from 143 countries.