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 Medalhustak22080 Norway 2525
Silver Medalhmmm8760 Norway 2370
Bronze MedalErlendm62554 Norway 2340
4Akira3019 Norway 2332
5LuisPSupi213 Brazil 2117
6byakuugan141040 United States 2114
7morpy135248 Spain 2109
8pannkaka5337 Sweden 2105
9stefanp83963 Romania 2083
10Improchess68388 Spain 2081

2 actions this minute
TacticianCountryRatingProblemRatingTime [s]
hound Australia 1452p24822 163810.4
hound Australia 1453p08375 1621

Welcome !
Latest 24h newbies
jerethliuUnited Nations
dhammer23United States
HotishoUnited Nations
ZacsuxUnited Nations
waliCosta Rica
JorgebingUnited Nations
HairhatUnited Nations
pulidinUnited Nations
2015-10-05 05:55 CEST (GMT +0200)
Chess Tactics Server has served
103,712,285 problems to
79,117 registered tacticians from 143 countries.