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 MedalErlendm69125 Norway 2359
Silver MedalFaramir (IM)78768 Argentina 2100
Bronze MedalLuisPSupi5716 Brazil 2082
4byakuugan147420 United States 2057
5Improchess83552 Spain 2057
6LLLLL71516 Hong Kong 2033
7Kronos (IM)1758 Brazil 2010
8gloomy86den25857 United States 2006
9pallow135 Philippines 1990
10KSMekhitarian10639 Brazil 1990

4 actions this minute
TacticianCountryRatingProblemRatingTime [s]
kerofnewbattle Germany 1538p02703 1406
veld Netherlands 1447p13136 13052.2
alexf United Nations 1576p65456 1663
alexf United Nations 1577p29128 156817.4

Welcome !
Latest 24h newbies
callmekookie06United States
callmekookie05United Nations
leastlyUnited Nations
camelsUnited Nations
archieUnited Nations
ttrxUnited Nations
BryanLUnited Nations
dadude27513United Nations
leo23628United Nations
2017-03-26 20:40 CEST (GMT +0200)
Chess Tactics Server has served
109,496,894 problems to
85,668 registered tacticians from 143 countries.