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 Medalhustak23981 Norway 2275
Silver Medalmorpy135802 Spain 2201
Bronze Medalstefanp95401 Romania 2121
4aryantari19752 Norway 2120
5Faramir (IM)76959 Argentina 2108
6byakuugan143461 United States 2090
7LuisPSupi900 Brazil 2071
8themaheide (GM)5256 Greece 2062
9Improchess71329 Spain 2040
10Fedex3521 Argentina 2025

14 actions this minute
TacticianCountryRatingProblemRatingTime [s]
Ravens United States 1353p39402 132210.0
JhanasErrand Puerto Rico 1561p34972 14925.8
trantran United Nations 1656p11855 15272.1
trantran United Nations 1655p60423 15414.3
Ravens United States 1352p47199 12796.4
joepye United States 1458p64286 163719.9
dasupressa United States 1378p04330 1904
JhanasErrand Puerto Rico 1554p36291 14473.8
Ravens United States 1351p43990 13553.9
ChessTTCamps United States 1685p19943 16897.3
JhanasErrand Puerto Rico 1562p44813 158224.6
trantran United Nations 1658p59102 1523
grom43 United States 1762p13384 160910.8
Ravens United States 1352p02966 1523

Welcome !
Latest 24h newbies
GlichUnited Nations
ElighUnited Nations
DDT94United Nations
willianLUnited Nations
BielSysUnited Nations
AybareonUnited Nations
ps4010United Nations
WangZugzUnited Nations
2016-02-10 03:25 CET (GMT +0100)
Chess Tactics Server has served
105,555,091 problems to
80,724 registered tacticians from 143 countries.