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 MedalErlendm67436 Norway 2282
Silver MedalSergiochess70685 Russian Federation 2122
Bronze MedalLazarillo3350 United States 2121
4byakuugan146380 United States 2106
5Faramir (IM)78357 Argentina 2100
6Aaron24780 United States 2084
7Soryu75778 Japan 2056
8Improchess75253 Spain 2051
9LuisPSupi3835 Brazil 2042
10aryantari21300 Norway 2041

16 actions this minute
TacticianCountryRatingProblemRatingTime [s]
chessisajedrez United States 1694p14155 171211.6
enoughsaid05 France 1697p58548 17203.2
schubert United Nations 1321p62057 144010.4
MarkBeech Netherlands 1353p47880 144426.9
SS01 United States 1656p42888 1623
BssChessMaster Switzerland 1238p36646 155640.2
enoughsaid05 France 1699p31088 1697
r0ck Argentina 1652p12138 15851.4
chessisajedrez United States 1693p65468 17328.6
schubert United Nations 1317p00533 12303.5
enoughsaid05 France 1697p01396 16992.6
r0ck Argentina 1652p03973 13544.5
schubert United Nations 1321p09855 1446
MarkBeech Netherlands 1351p09097 147512.6
SS01 United States 1654p12379 16222.0
enoughsaid05 France 1698p35608 16209.1

Welcome !
Latest 24h newbies
2016-07-28 16:25 CEST (GMT +0200)
Chess Tactics Server has served
107,282,837 problems to
82,574 registered tacticians from 143 countries.