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 MedalErlendm35669 Norway 2231
Silver Medalbyakuugan132765 United States 2131
Bronze MedalSoryu74682 Japan 2114
4Faramir (IM)74339 Argentina 2103
5morpy110596 Spain 2093
6cactus81913 United Nations 2070
7Lazarillo424 United States 2050
8blueeyed3801 United Nations 2044
9stefanp73032 Romania 2029
10tzzzzz2526 Armenia 2028

11 actions this minute
TacticianCountryRatingProblemRatingTime [s]
stevelco United States 1430p17959 1561
Ravens United States 1274p63867 1777
pawnstorm United States 1300p44179 1618
ernejose Venezuela 1325p23056 1491
pawnstorm United States 1302p49189 135348.0
knight64 United States 1384p29318 1236
Merovingio El Salvador 1042p17472 9115.4
knight64 United States 1382p09213 15035.7
stevelco United States 1430p48404 157040.7
Merovingio El Salvador 1043p57806 104513.6
knight64 United States 1379p60491 13282.1

Welcome !
Latest 24h newbies
75GreLatUnited States
LongshanksUnited Kingdom
qcoderUnited States
jak3467United Nations
yuzirneymUnited Nations
Arhitector182United Nations
zirgsUnited Nations
obear203United Nations
cmpentaUnited States
QuelstUnited Nations
Prasanth53United Nations
SungudsazUnited Nations
2014-11-29 03:10 CET (GMT +0100)
Chess Tactics Server has served
98,949,714 problems to
75,125 registered tacticians from 143 countries.