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 Medalhmmm5724 Norway 2348
Silver Medalhustak20354 Norway 2342
Bronze MedalAkira896 Norway 2265
4Erlendm24917 Norway 2203
5fastkicker10005 France 2178
6Sergiochess65791 Russian Federation 2164
7morpy104630 Spain 2136
8byakuugan130338 United States 2132
9TomsebollJR88 Sweden 2110
10aryantari3123 Norway 2083

22 actions this minute
TacticianCountryRatingProblemRatingTime [s]
slayerfan911 United States 1389p01146 1692
strikesicilian Japan 1678p19886 15244.1
jesusblanco22 Venezuela 1444p19446 14503.3
julia7 Canada 1446p09308 13784.9
trastorno United Nations 1417p16524 1461
alescamilla Mexico 1134p62614 131010.4
slayerfan911 United States 1390p65080 1732
johnesugden United Kingdom 1168p12704 140012.9
Varija United States 1214p33354 1336
jesusblanco22 Venezuela 1445p11560 156944.1
Jinxo011 United States 1419p42027 9891.6
strikesicilian Japan 1683p48718 1791
trastorno United Nations 1415p10307 14007.1
slayerfan911 United States 1391p42722 1708
julia7 Canada 1449p48021 1491
alescamilla Mexico 1133p59206 11387.2
strikesicilian Japan 1682p62534 15485.9
Jinxo011 United States 1424p12403 1228
trastorno United Nations 1415p06077 154915.7
Varija United States 1213p17601 11426.5
alescamilla Mexico 1132p17909 146812.5
johnesugden United Kingdom 1167p02419 126210.4

Welcome !
Latest 24h newbies
alex1390United Nations
simchankUnited Nations
Artemis91United Nations
ntkien162Viet Nam
starbladeUnited Nations
bogolepovUnited Nations
mosda88United Nations
fjfsuaUnited Nations
rmarti91United States
2014-07-23 18:15 CEST (GMT +0200)
Chess Tactics Server has served
96,499,370 problems to
73,046 registered tacticians from 143 countries.