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 Medalhmmm4874 Norway 2240
Silver Medalhustak18078 Norway 2230
Bronze Medalfastkicker9216 France 2214
4Sergiochess64424 Russian Federation 2165
5larso101 Norway 2116
6Erlendm12007 Norway 2096
7byakuugan127156 United States 2094
8Soryu74249 Japan 2077
9pannkaka4583 Sweden 2070
10mnarciso (GM)27591 Spain 2012

25 actions this minute
TacticianCountryRatingProblemRatingTime [s]
veldmuis Netherlands 1612p01684 1675
Mopsik Poland 1395p05861 15176.5
hosta2002 Germany 1417p53770 163913.3
HaraldL Sweden 1628p34698 155017.1
nikomanis Greece 1693p60644 156810.8
werewolf Russian Federation 1901p26594 194076.9
television Spain 1730p00942 17040.6
cairojames Egypt 1190p25095 11058.9
ETOU Belgium 1238p21622 124610.2
wargasm Sweden 1983p24148 17272.0
JonasMuller Australia 1824p65417 185511.3
television Spain 1731p58533 168911.9
Mopsik Poland 1394p63837 13496.3
ericovski Spain 1816p59325 1841
nikomanis Greece 1694p16699 170412.4
wargasm Sweden 1983p17407 16804.8
ETOU Belgium 1238p00294 127213.2
Mopsik Poland 1393p31508 13915.4
television Spain 1728p65270 16043.8
hosta2002 Germany 1421p12256 1696
wargasm Sweden 1986p09867 1725
veldmuis Netherlands 1618p21504 1614
ericovski Spain 1817p58816 1947
Mopsik Poland 1392p11855 15287.8
HaraldL Sweden 1626p50460 14913.7

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2014-04-16 13:00 CEST (GMT +0200)
Chess Tactics Server has served
94,446,447 problems to
71,585 registered tacticians from 143 countries.