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 Medalfastkicker10105 France 2266
4Akira896 Norway 2265
5Erlendm25540 Norway 2200
6morpy104862 Spain 2174
7Sergiochess65791 Russian Federation 2164
8byakuugan130357 United States 2127
9aryantari3123 Norway 2083
10Yaranaika74113 Japan 2058

20 actions this minute
TacticianCountryRatingProblemRatingTime [s]
Yuan Switzerland 1722p64364 16323.3
dimava Belgium 1611p52508 14939.2
Addict Norway 1914p52835 197922.3
siggeoslo Norway 1350p61901 148028.6
Yuan Switzerland 1717p34232 16022.9
greenkick Romania 1356p11312 167618.8
Ponderable Germany 1529p56198 1535
redrat Germany 1624p45241 1692
Yuan Switzerland 1714p26759 17007.0
dimava Belgium 1610p42498 15243.3
lucha United Nations 1320p42476 12876.3
Yuan Switzerland 1710p22370 15912.7
Addict Norway 1914p36386 16227.2
wimpel Netherlands 1186p63330 131211.7
siggeoslo Norway 1349p38099 11484.7
redrat Germany 1624p16631 15658.4
dimava Belgium 1609p17634 14994.6
Yuan Switzerland 1719p50498 1626
lucha United Nations 1321p39787 129615.2
Addict Norway 1914p08149 17624.8

Welcome !
Latest 24h newbies
alex20030190Hong Kong
xSeraphxUnited Nations
FfweowefUnited Nations
ilacidem024United States
stalkovUnited States
ZeverusZnapeUnited States
freelancer18United States
gelove48United Nations
electrochesssUnited Nations
1indianidiotUnited Nations
2014-07-30 13:25 CEST (GMT +0200)
Chess Tactics Server has served
96,640,581 problems to
73,146 registered tacticians from 143 countries.