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 Medalhustak20774 Norway 2401
Silver Medalhmmm6346 Norway 2349
Bronze MedalErlendm49696 Norway 2257
4morpy129874 Spain 2218
5fastkicker11731 France 2199
6byakuugan135979 United States 2128
7Sergiochess68528 Russian Federation 2128
8Lazarillo2522 United States 2119
9stefanp76064 Romania 2103
10cactus83607 United Nations 2076

10 actions this minute
TacticianCountryRatingProblemRatingTime [s]
suke2013 Germany 1579p26826 1545
jek1974 Italy 1741p13782 15955.6
kikkabo Norway 1715p22776 161312.6
Charlie Netherlands 1537p44755 15059.4
robych United Nations 1684p55692 172312.2
jek1974 Italy 1740p23008 15703.1
Charlie Netherlands 1537p01008 14066.7
jek1974 Italy 1740p30698 17167.8
kikkabo Norway 1714p54532 17847.4
Charlie Netherlands 1538p09811 155334.3

Welcome !
Latest 24h newbies
hopfUnited Nations
AdityaKrishUnited Nations
Lee123aUnited Nations
lakekayakUnited Nations
sobakmCzech Republic
LewisandClockUnited Nations
BenoniPlayerUnited Nations
goblin23United Nations
frankusUnited Nations
2015-03-06 11:55 CET (GMT +0100)
Chess Tactics Server has served
100,661,960 problems to
76,598 registered tacticians from 143 countries.