Chess Tactics Server

Currently we provide 36,863 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 Medalhustak23981 Norway 2275
Silver Medalmorpy135802 Spain 2201
Bronze Medalstefanp95389 Romania 2112
4Faramir (IM)76959 Argentina 2108
5aryantari19687 Norway 2104
6byakuugan143445 United States 2087
7LuisPSupi900 Brazil 2071
8themaheide (GM)5256 Greece 2062
9Improchess71329 Spain 2040
10Fedex3521 Argentina 2025

13 actions this minute
TacticianCountryRatingProblemRatingTime [s]
veldmuis Netherlands 1573p62945 16779.6
maracuya Canada 1626p17725 178311.4
john2800 United Nations 1648p24818 15868.4
Olddog Australia 1311p54579 2122
infni France 1594p27347 15273.1
BssChessMaster Switzerland 1274p60547 1827
john2800 United Nations 1648p10889 14902.6
maracuya Canada 1627p23530 1827
infni France 1594p22123 15698.5
john2800 United Nations 1646p00992 17203.7
veldmuis Netherlands 1575p00543 1737
john2800 United Nations 1645p43547 16741.8
infni France 1595p15688 1692

Welcome !
Latest 24h newbies
akilarajUnited Nations
onionbabUnited Nations
luluuppUnited Nations
cth123United Nations
alan2hereUnited Nations
EvandrobitUnited Nations
apropoUnited Nations
delongUnited Nations
Dainisz83United Nations
sephiraUnited Nations
rajkamalchessUnited Nations
EsraUnited Nations
rajkamalsUnited Nations
MumiUnited Nations
2016-02-08 13:05 CET (GMT +0100)
Chess Tactics Server has served
105,528,379 problems to
80,705 registered tacticians from 143 countries.