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 MedalErlendm52324 Norway 2287
Silver Medalmorpy131960 Spain 2270
Bronze Medalfastkicker11812 France 2266
4byakuugan136722 United States 2156
5tomseboll55220 Sweden 2130
6Lazarillo2522 United States 2119
7stefanp76089 Romania 2098
8Sergiochess68582 Russian Federation 2085
9bogdanovich2014 Romania 2053
10aryantari9907 Norway 2032

11 actions this minute
TacticianCountryRatingProblemRatingTime [s]
WangAZ United States 1505p50124 142510.4
fabqueen Argentina 1124p26448 1221
Ravens United States 1334p50877 1299
WangAZ United States 1502p59649 13983.5
coil United States 1767p53664 1952
stevelco United States 1407p55849 14836.6
Ravens United States 1333p03977 12765.6
AZWang United States 1420p29281 14626.8
stevelco United States 1408p55589 148620.5
coil United States 1765p38998 16371.2
Ravens United States 1329p45300 13811.5

Welcome !
Latest 24h newbies
IshaUnited Nations
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2015-04-01 03:05 CEST (GMT +0200)
Chess Tactics Server has served
101,083,341 problems to
76,956 registered tacticians from 143 countries.