Chess Tactics Server

Currently we provide 36,868 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 Medalhustak22080 Norway 2525
Silver Medalhmmm8760 Norway 2370
Bronze MedalErlendm62554 Norway 2340
4Akira3019 Norway 2332
5LuisPSupi213 Brazil 2117
6byakuugan141033 United States 2116
7morpy135248 Spain 2109
8pannkaka5337 Sweden 2105
9stefanp83963 Romania 2083
10Improchess68388 Spain 2081

12 actions this minute
TacticianCountryRatingProblemRatingTime [s]
midasrex1953 United States 1274p31017 10936.7
fredthebear Turkey 1302p14429 1494
VictorTowers70 Mexico 1223p59664 11945.5
lacivert United Nations 1547p44455 162215.1
rise512 Japan 1842p60271 1838
pkcristiangp16 Colombia 1499p37273 1611
pkcristiangp16 Colombia 1498p14243 14463.7
Doan499 Puerto Rico 1279p03973 135435.6
lacivert United Nations 1547p17010 14737.5
VictorTowers70 Mexico 1218p22931 134810.6
rise512 Japan 1843p61675 1853
lacivert United Nations 1546p47817 15045.3

Welcome !
Latest 24h newbies
JorgebingUnited Nations
HairhatUnited Nations
pulidinUnited Nations
KawaLionUnited Nations
hennaUnited Nations
kasandraUnited Nations
rick22crCosta Rica
psychologyboyUnited Nations
PinkSocksUK8United Nations
lavi1000United Nations
2015-10-04 23:10 CEST (GMT +0200)
Chess Tactics Server has served
103,709,192 problems to
79,111 registered tacticians from 143 countries.