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 Medalbyakuugan148349 United States 2128
Silver MedalSergiochess76311 Russian Federation 2115
Bronze MedalFaramir (IM)79286 Argentina 2102
4LuisPSupi6061 Brazil 2097
5KSMekhitarian11056 Brazil 2034
6Improchess85053 Spain 2023
7GMat507358 United Kingdom 2021
8alfilazo8100 Peru 2014
9Asterix19636 Norway 2013
10fastest75579 Chile 2013

2 actions this minute
TacticianCountryRatingProblemRatingTime [s]
Anta Brazil 1494p61661 1553
Anta Brazil 1501p49360 1347

Welcome !
Latest 24h newbies
marieannelizUnited Nations
gregartistUnited Nations
MpguseUnited Nations
2017-06-25 02:10 CEST (GMT +0200)
Chess Tactics Server has served
110,035,597 problems to
86,381 registered tacticians from 143 countries.