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 Medalhustak20774 Norway 2401
Silver Medalhmmm6346 Norway 2349
Bronze MedalErlendm49570 Norway 2249
4morpy129874 Spain 2218
5fastkicker11717 France 2192
6byakuugan135979 United States 2128
7Sergiochess68528 Russian Federation 2128
8Lazarillo2522 United States 2119
9stefanp76064 Romania 2103
10cactus83607 United Nations 2076

19 actions this minute
TacticianCountryRatingProblemRatingTime [s]
paradigalla Netherlands 1463p27465 13516.1
TAK10 United States 1537p55634 145619.6
superflaco Colombia 1811p38193 16031.6
Improchess Spain 1989p21714 16273.6
wxcvbn France 1370p18875 1480
PoopusMaximus United Kingdom 1416p46870 14123.8
bigm723 United States 1006p46296 11073.1
paradigalla Netherlands 1462p00483 13635.9
superflaco Colombia 1810p59937 16245.6
Improchess Spain 1988p43546 16824.1
arjanschoonen Netherlands 1351p43258 150950.5
paradigalla Netherlands 1461p35627 15055.7
TAK10 United States 1540p63566 146027.6
Andrew314 Canada 1121p60856 141343.3
wxcvbn France 1369p14120 12712.9
disinclined United States 1796p45343 1997
bigm723 United States 1007p17581 1397
paradigalla Netherlands 1462p63480 163968.4
wxcvbn France 1369p24753 15084.3

Welcome !
Latest 24h newbies
frankusUnited Nations
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2015-03-05 16:55 CET (GMT +0100)
Chess Tactics Server has served
100,647,287 problems to
76,588 registered tacticians from 143 countries.