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 Medalhustak25719 Norway 2332
Silver Medalfastkicker12452 France 2305
Bronze MedalFaramir (IM)77632 Argentina 2114
4byakuugan145766 United States 2084
5Lazarillo3278 United States 2073
6LuisPSupi3045 Brazil 2073
7Soryu75652 Japan 2064
8aryantari20973 Norway 2030
9LLLLL57159 Hong Kong 2025
10Improchess72343 Spain 2010

8 actions this minute
TacticianCountryRatingProblemRatingTime [s]
mark24 Germany 1633p63514 16379.2
cbatx Spain 1450p11518 1587
goldenrule South Africa 1859p23092 2119
sam8493 United Nations 1615p14570 16535.8
mark24 Germany 1632p59819 15875.5
sam8493 United Nations 1615p02423 15838.5
mark24 Germany 1631p27647 15135.5
sam8493 United Nations 1615p41230 15394.7

Welcome !
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2016-05-31 07:40 CEST (GMT +0200)
Chess Tactics Server has served
106,678,029 problems to
81,917 registered tacticians from 143 countries.