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 Medalhmmm5724 Norway 2348
Silver Medalhustak20354 Norway 2342
Bronze MedalAkira896 Norway 2265
4Erlendm24917 Norway 2203
5fastkicker10005 France 2178
6Sergiochess65791 Russian Federation 2164
7morpy104630 Spain 2136
8byakuugan130349 United States 2117
9TomsebollJR88 Sweden 2110
10aryantari3123 Norway 2083

21 actions this minute
TacticianCountryRatingProblemRatingTime [s]
jesusblanco22 Venezuela 1467p15856 14072.9
markbrown58 United States 1364p30949 1590
danbejupn Colombia 1739p19608 15986.1
dimava Belgium 1595p62704 1675
kochamole Poland 1786p07317 16384.4
henristor Norway 1895p28864 17306.3
alcar333 Aruba 1544p61167 14404.2
jesusblanco22 Venezuela 1466p32147 14215.9
dimava Belgium 1594p27311 16705.5
danbejupn Colombia 1741p37915 173159.7
alcar333 Aruba 1543p40181 14774.0
dolledan Germany 1502p22187 14964.3
jesusblanco22 Venezuela 1466p47067 13934.1
farouta1 United Nations 1283p38717 1398
henristor Norway 1896p59037 16087.1
alcar333 Aruba 1541p47949 13941.7
dimava Belgium 1592p13110 16203.5
dolledan Germany 1494p65247 13534.2
jesusblanco22 Venezuela 1465p21437 14113.9
henristor Norway 1895p08704 17763.3
alcar333 Aruba 1541p34538 15077.7

Welcome !
Latest 24h newbies
france412United States
kralUnited Nations
alex1390United Nations
simchankUnited Nations
Artemis91United Nations
ntkien162Viet Nam
starbladeUnited Nations
bogolepovUnited Nations
mosda88United Nations
fjfsuaUnited Nations
2014-07-23 22:25 CEST (GMT +0200)
Chess Tactics Server has served
96,504,259 problems to
73,049 registered tacticians from 143 countries.