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 MedalErlendm33128 Norway 2243
Silver Medalfastkicker11445 France 2196
Bronze MedalSergiochess66695 Russian Federation 2158
4morpy107682 Spain 2143
5Faramir (IM)74178 Argentina 2114
6pannkaka5076 Sweden 2110
7byakuugan131448 United States 2104
8stefanp70953 Romania 2067
9Aaron24142 United States 2044
10tzzzzz2443 Armenia 2029

13 actions this minute
TacticianCountryRatingProblemRatingTime [s]
morslilleole Norway 1010p05479 1396
shadow7 United States 1344p01076 14959.1
Spartano Venezuela 1311p64971 1510
olda1 Czech Republic 1668p63549 1686
maru United Nations 869p39690 1421
Savle Slovenia 1370p23884 2069
fiveyearold Canada 1419p28222 1423
olda1 Czech Republic 1667p34237 15284.1
safari Norway 1538p20318 1556
aryantari Norway 1987p41412 16492.5
greatloser Singapore 1388p61474 163913.0
Spartano Venezuela 1314p52929 1483
aryantari Norway 1986p52094 16671.2

Welcome !
Latest 24h newbies
jnahuelUnited Nations
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2014-10-21 20:40 CEST (GMT +0200)
Chess Tactics Server has served
98,228,341 problems to
74,516 registered tacticians from 143 countries.