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 Medalhustak25905 Norway 2339
Silver MedalErlendm69215 Norway 2314
Bronze MedalLuisPSupi5954 Brazil 2121
4byakuugan147621 United States 2085
5Faramir (IM)79179 Argentina 2072
6blueeyed7597 Israel 2047
7Improchess83846 Spain 2028
8KSMekhitarian10662 Brazil 2025
9LLLLL74483 Hong Kong 2010
10JTanReborn5304 Australia 2007

11 actions this minute
TacticianCountryRatingProblemRatingTime [s]
SebastYo South Africa 1438p11102 14417.7
tactissimo Germany 1300p13124 12343.0
SebastYo South Africa 1435p14940 12773.2
herb United Kingdom 1479p36729 13845.4
herb United Kingdom 1478p16490 13523.7
Tempura Hong Kong 1354p15876 12786.5
SebastYo South Africa 1433p15868 14216.5
tactissimo Germany 1300p03183 150019.8
SebastYo South Africa 1429p17297 14094.3
Tempura Hong Kong 1355p26957 156224.8
herb United Kingdom 1479p33754 1609

Welcome !
Latest 24h newbies
AziraphaelUnited Nations
aGillesUnited Nations
eased7United Nations
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RiquelmovUnited Nations
oz4evermoreUnited Nations
JustusIMUnited States
JustuslMUnited Nations
2017-04-28 18:00 CEST (GMT +0200)
Chess Tactics Server has served
109,706,009 problems to
85,970 registered tacticians from 143 countries.