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 Medalhmmm5965 Norway 2408
Silver Medalmorpy126786 Spain 2280
Bronze MedalErlendm43461 Norway 2269
4fastkicker11504 France 2265
5Sergiochess68068 Russian Federation 2140
6alfilazo7499 Peru 2119
7byakuugan135286 United States 2108
8cactus83564 United Nations 2085
9stefanp76058 Romania 2079
10Lazarillo2115 United States 2075

10 actions this minute
TacticianCountryRatingProblemRatingTime [s]
LLLLL Hong Kong 1788p64417 1661
mviglian Italy 1456p57476 15972.9
earloflothian Germany 1491p31489 1382
LLLLL Hong Kong 1790p61584 1581
mviglian Italy 1456p33494 161422.1
earloflothian Germany 1490p44444 14041.8
LLLLL Hong Kong 1789p58934 16591.8
greatloser Singapore 1350p20657 138024.8
earloflothian Germany 1489p61724 14772.5
LLLLL Hong Kong 1789p03822 16683.7

2015, January 26
Latest News
Jubilee !
Chess Tactics Server
has served
100,000,000 problems. Tactician
gasgas Italy
failed to solve problem p10207.
Welcome !
Latest 24h newbies
Kevin84United Nations
EraseUUnited States
mike1234567890United Nations
KannadeUnited Nations
uniqueid3United Nations
Cojofo317United Nations
ghooraUnited Nations
nobnovUnited Nations
ibustuUnited Nations
aadil24United Kingdom
2015-01-29 09:10 CET (GMT +0100)
Chess Tactics Server has served
100,050,078 problems to
76,057 registered tacticians from 143 countries.