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

18 actions this minute
TacticianCountryRatingProblemRatingTime [s]
trastorno United Nations 1418p03668 129011.8
julia7 Canada 1448p05499 153011.6
alescamilla Mexico 1133p57386 115221.1
jesusblanco22 Venezuela 1444p34755 14896.6
Varija United States 1216p08936 1226
slayerfan911 United States 1392p09227 1649
trastorno United Nations 1413p61679 15467.4
johnesugden United Kingdom 1165p13113 12695.5
jesusblanco22 Venezuela 1444p07601 15175.5
julia7 Canada 1448p02182 13227.1
Varija United States 1215p37340 143116.1
slayerfan911 United States 1394p65135 1602
Jinxo011 United States 1423p17687 11362.2
trastorno United Nations 1416p32176 139316.3
johnesugden United Kingdom 1165p18416 126012.6
slayerfan911 United States 1395p35293 1639
jesusblanco22 Venezuela 1443p48091 14875.3
Varija United States 1213p40010 13096.5

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.