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 MedalErlendm35548 Norway 2225
Silver Medalfastkicker11456 France 2208
Bronze Medalbyakuugan132718 United States 2135
4Soryu74682 Japan 2114
5Faramir (IM)74339 Argentina 2103
6morpy110596 Spain 2093
7cactus81818 United Nations 2056
8Lazarillo424 United States 2050
9blueeyed3177 United Nations 2035
10tzzzzz2526 Armenia 2028

24 actions this minute
TacticianCountryRatingProblemRatingTime [s]
infni France 1470p11432 15667.2
betaben United Nations 1568p33015 1490
blueeyed United Nations 2033p46600 17932.6
chrysomallo United States 1564p51848 144912.0
kidsgambit2 Philippines 1444p54417 1327142.4
stefanp Romania 2000p13966 17061.1
garlic Italy 1350p56919 1445
asset Philippines 1429p44714 13049.1
blueeyed United Nations 2032p02263 17561.3
betaben United Nations 1567p35899 15481.9
daudjouns Luxembourg 1526p06395 1512
stefanp Romania 2000p00161 213712.9
infni France 1471p14860 1399
TheLordOfAll13 United States 1233p31691 117611.4
chrysomallo United States 1565p28630 156223.0
blueeyed United Nations 2031p03585 18390.6
infni France 1472p13323 151014.7
stefanp Romania 1999p31414 17422.5
daudjouns Luxembourg 1526p49205 150410.6
Dimitrij Russian Federation 1733p48869 1745
blueeyed United Nations 2030p29040 16692.6
asset Philippines 1430p33850 1552
telal United Nations 1018p43172 93010.1
blueeyed United Nations 2026p50423 20701.7

Welcome !
Latest 24h newbies
ProSk8terUnited States
DavidrHong Kong
polymorphUnited States
AdtvuodomUnited Nations
bla2eUnited Nations
XunsdeusesUnited Nations
tejastksUnited Nations
bennywiseUnited Nations
loliusUnited Nations
2014-11-26 09:30 CET (GMT +0100)
Chess Tactics Server has served
98,896,116 problems to
75,078 registered tacticians from 143 countries.