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 MedalErlendm33749 Norway 2204
Silver Medalfastkicker11445 France 2196
Bronze MedalSergiochess66695 Russian Federation 2158
4byakuugan131607 United States 2132
5morpy108786 Spain 2117
6pannkaka5076 Sweden 2110
7stefanp70956 Romania 2090
8tzzzzz2443 Armenia 2029
9Aaron24177 United States 2020
10Pumuckl128280 Germany 2017

12 actions this minute
TacticianCountryRatingProblemRatingTime [s]
perseverent Romania 1333p53071 1508
NikhilP United States 1126p21005 125418.8
salaryhoers Finland 1404p61527 15595.5
pipefroide France 1068p18076 114214.1
BadMamaJama United States 1329p56296 13759.0
dasupressa United States 1286p30506 1908
salaryhoers Finland 1404p37448 156017.0
Wonderstar Germany 1499p42836 1364
Knamzy United States 1447p41440 2023
morslilleole Norway 1103p25547 1437
pipefroide France 1069p48563 1334
perseverent Romania 1332p39293 12072.7

Welcome !
Latest 24h newbies
FalconkaiserUnited Nations
MatrixDragonUnited States
maticusw265482United Kingdom
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gsvejoeUnited Nations
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aleksey9230Russian Federation
ipoelUnited Nations
ceejunior301United States
tolliverchessUnited Nations
shankskUnited States
silatwarriorUnited Nations
miguelangel39United Nations
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jjtimeUnited States
2014-10-31 16:10 CET (GMT +0100)
Chess Tactics Server has served
98,418,312 problems to
74,692 registered tacticians from 143 countries.