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 Medalhmmm9922 Norway 2301
Silver MedalErlendm75239 Norway 2253
Bronze MedalLuisPSupi6792 Brazil 2105
4byakuugan148854 United States 2104
5Sergiochess78071 Russian Federation 2085
6kleate94 Philippines 2073
7tzzzzz3149 Armenia 2055
8andey37 United Nations 2042
9Improchess89490 Spain 2040
10watters1977 United Nations 2040

7 actions this minute
TacticianCountryRatingProblemRatingTime [s]
mcguirk Ireland 1544p42849 16513.4
sanjanavanitha United States 1523p21241 1467
mcguirk Ireland 1542p25910 14442.8
sanjanavanitha United States 1521p19630 16286.0
mcguirk Ireland 1539p29469 14621.9
sanjanavanitha United States 1520p21349 16109.3
mcguirk Ireland 1537p17072 14865.1

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2017-10-19 00:00 CEST (GMT +0200)
Chess Tactics Server has served
110,923,650 problems to
87,978 registered tacticians from 143 countries.