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 MedalErlendm54391 Norway 2327
Silver Medalmorpy132772 Spain 2290
Bronze Medalfastkicker11823 France 2267
4mjehehe1430 Cambodia 2163
5pannkaka5258 Sweden 2146
6byakuugan137117 United States 2135
7Asterix14215 Norway 2121
8bogdanovich2014 Romania 2053
9Improchess63186 Spain 2051
10aryantari11384 Norway 2031

6 actions this minute
TacticianCountryRatingProblemRatingTime [s]
Polloaljaque Colombia 1776p10530 1813
higapon Japan 1605p65468 1730
seba Argentina 1378p02207 13152.1
seba Argentina 1377p53969 13114.0
seba Argentina 1377p50737 142310.1
higapon Japan 1602p56413 171214.5

Welcome !
Latest 24h newbies
hunter14United Nations
rodjerUnited Nations
lionxqueen2United Nations
pseudocodeUnited States
OMLOMOUnited Nations
dca66United Nations
rajashakthi98United Nations
FjordleifUnited Nations
DmrfrostUnited States
2015-04-27 06:00 CEST (GMT +0200)
Chess Tactics Server has served
101,532,980 problems to
77,313 registered tacticians from 143 countries.