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 MedalErlendm33749 Norway 2204
Silver Medalfastkicker11445 France 2196
Bronze MedalSergiochess66695 Russian Federation 2158
4byakuugan131607 United States 2132
5morpy108786 Spain 2117
6pannkaka5076 Sweden 2110
7stefanp70956 Romania 2090
8tzzzzz2443 Armenia 2029
9Aaron24177 United States 2020
10Pumuckl128280 Germany 2017

27 actions this minute
TacticianCountryRatingProblemRatingTime [s]
0202590357 United Nations 1171p32631 123328.1
orobas United Nations 1546p27116 13768.5
DrZoidbergMD United States 1747p02763 15894.7
crist1024 Colombia 1705p08760 1642
cacchilen United Kingdom 1083p64972 1421
Antonin United Nations 1366p17659 143316.0
groborobo Germany 1495p62369 173329.4
alexleo United Kingdom 1230p11491 114011.3
BlackCat231 Cyprus 840p64674 1365
meliusms United States 1110p03913 1228
crist1024 Colombia 1698p07061 15302.5
jjtime United States 974p52214 12179.9
morslilleole Norway 1100p10126 131338.1
DrZoidbergMD United States 1746p17002 15441.8
sam8493 United Nations 1606p41751 16575.2
crist1024 Colombia 1688p45963 15631.0
orobas United Nations 1546p28331 13536.3
BlackCat231 Cyprus 850p60643 1195
DrZoidbergMD United States 1746p11357 16848.9
0202590357 United Nations 1172p08101 137426.7
Antonin United Nations 1365p32764 14559.3
crist1024 Colombia 1672p20642 17031.8
BlackCat231 Cyprus 807p53570 8884.7
sam8493 United Nations 1607p62641 1528
alexleo United Kingdom 1233p23621 1333
groborobo Germany 1497p11392 160724.8
orobas United Nations 1546p28182 1572

Welcome !
Latest 24h newbies
cacchilenUnited Kingdom
MatrixDragonUnited States
maticusw265482United Kingdom
MaxTheFaxUnited States
gsvejoeUnited Nations
zarywellaUnited Nations
aleksey9230Russian Federation
ipoelUnited Nations
ceejunior301United States
tolliverchessUnited Nations
shankskUnited States
silatwarriorUnited Nations
miguelangel39United Nations
dsjoergUnited Nations
jjtimeUnited States
2014-10-31 17:25 CET (GMT +0100)
Chess Tactics Server has served
98,419,965 problems to
74,693 registered tacticians from 143 countries.