Chess Tactics Server

Currently we provide 36,868 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 Medalhustak22460 Norway 2375
Silver MedalErlendm66666 Norway 2319
Bronze Medalmorpy135406 Spain 2207
4stefanp88440 Romania 2116
5Sergiochess69186 Russian Federation 2113
6byakuugan142665 United States 2102
7Faramir (IM)76187 Argentina 2078
8LuisPSupi781 Brazil 2074
9Soryu75068 Japan 2073
10Gliga5353 Brazil 2064

12 actions this minute
TacticianCountryRatingProblemRatingTime [s]
cozio Italy 1355p09320 13656.7
blindridge United States 1678p09283 1728
NikhilP India 1378p63547 145830.4
DrZoidbergMD United States 1743p65002 16497.4
ogh1911 Norway 1373p04167 12654.0
blindridge United States 1677p53834 15654.9
rafiquiii United Nations 1861p04050 1899
DrZoidbergMD United States 1743p47302 17586.7
ogh1911 Norway 1374p54493 131821.4
DrZoidbergMD United States 1743p42981 158312.2
rakko Japan 1515p30615 15858.7
NikhilP India 1383p43878 1373

Welcome !
Latest 24h newbies
ZenThunderUnited States
uwindUnited Nations
gayathri2003United Nations
2015-11-28 17:35 CET (GMT +0100)
Chess Tactics Server has served
104,495,086 problems to
79,763 registered tacticians from 143 countries.