Chess Tactics Server

Currently we provide 36,869 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 MedalTomsebollJR165 Sweden 2223
Silver MedalErlendm36635 Norway 2211
Bronze Medalmorpy116036 Spain 2198
4tomseboll55114 Sweden 2141
5alfilazo7469 Peru 2121
6byakuugan134199 United States 2111
7Sergiochess66865 Russian Federation 2105
8Faramir (IM)74440 Argentina 2104
9cactus82713 United Nations 2062
10Aaron24304 United States 2061

25 actions this minute
TacticianCountryRatingProblemRatingTime [s]
morpy Spain 2198p34688 18922.8
ser30 Spain 1671p53495 16413.6
LewisKarroll United Nations 1185p24164 1319
mulkurul Germany 1706p49172 1684
morpy Spain 2198p29772 18160.8
Flixflo Germany 1610p59403 15004.4
renm Japan 1608p31517 147531.0
greatloser Singapore 1432p20605 14044.6
ser30 Spain 1689p26793 168216.1
morpy Spain 2198p51630 16031.1
mulkurul Germany 1706p34638 175914.4
Flixflo Germany 1610p46619 14895.1
HalBregg United Nations 1207p11503 1337
morpy Spain 2197p47150 20181.3
seagull1756 Russian Federation 1520p22945 1432
LewisKarroll United Nations 1184p47889 10184.6
greatloser Singapore 1434p53106 1465
morpy Spain 2197p48706 17811.7
Flixflo Germany 1609p55709 16531.8
LewisKarroll United Nations 1184p58931 141610.7
mulkurul Germany 1703p29404 16923.4
morpy Spain 2197p43807 18762.5
seagull1756 Russian Federation 1521p45486 13838.9
renm Japan 1607p01800 15215.1
groborobo Germany 1486p07679 161319.0

Welcome !
Latest 24h newbies
vini10United Nations
MaulanaUnited Nations
abineshwarUnited Nations
eisley05United Nations
mkp2United Kingdom
jerohamsanchezUnited Nations
abadonUnited Nations
LselfUnited Kingdom
2014-12-20 12:25 CET (GMT +0100)
Chess Tactics Server has served
99,313,316 problems to
75,453 registered tacticians from 143 countries.