Chess Tactics Server

Currently we provide 36,869 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 MedalErlendm33219 Norway 2258
Silver Medalfastkicker11445 France 2196
Bronze MedalSergiochess66695 Russian Federation 2158
4morpy107937 Spain 2143
5Faramir (IM)74178 Argentina 2114
6pannkaka5076 Sweden 2110
7byakuugan131448 United States 2104
8stefanp70953 Romania 2067
9tzzzzz2443 Armenia 2029
10Fedex2946 Argentina 2011

13 actions this minute
TacticianCountryRatingProblemRatingTime [s]
chessgames64 Spain 1300p10467 14987.7
LuLiGa United Nations 1106p22808 132523.3
binyo1976 Indonesia 1412p23888 13366.2
123123123123 Russian Federation 1874p14252 16994.6
morslilleole Norway 1008p64770 11279.3
infni France 1400p50685 1417
binyo1976 Indonesia 1412p50251 154810.0
123123123123 Russian Federation 1871p39681 20954.9
Charlie Netherlands 1532p64368 1635
infni France 1396p39808 14553.3
chessgames64 Spain 1301p12358 1464
binyo1976 Indonesia 1411p15352 14533.9
infni France 1397p38546 143314.7

Welcome !
Latest 24h newbies
HandsonUnited Nations
mrte7ojoUnited Nations
EduardoCMUnited Nations
FitzoUnited Nations
PrinceofChinaUnited States
salaryhoersUnited Nations
kennypowers1United States
2014-10-24 15:00 CEST (GMT +0200)
Chess Tactics Server has served
98,283,230 problems to
74,561 registered tacticians from 143 countries.