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 MedalErlendm43194 Norway 2280
Bronze Medalmorpy126471 Spain 2274
4Sergiochess68068 Russian Federation 2140
5alfilazo7499 Peru 2119
6byakuugan135271 United States 2113
7Faramir (IM)74479 Argentina 2100
8cactus83564 United Nations 2085
9stefanp76058 Romania 2079
10Lazarillo2115 United States 2075

16 actions this minute
TacticianCountryRatingProblemRatingTime [s]
luca61 Italy 1824p03889 1788
motacilla Spain 1271p22086 1184
gunggeed0yda Czech Republic 1510p59852 15305.9
ApolloAndy United States 1153p07489 1328
grepakar Norway 1423p07435 154054.9
motacilla Spain 1270p06569 137811.4
ismaelpozo Spain 1303p12361 1420
luca61 Italy 1824p36354 15741.7
gunggeed0yda Czech Republic 1508p32099 14906.7
poussin Switzerland 1312p60352 1391
luca61 Italy 1825p43570 1786
ApolloAndy United States 1153p28968 121311.0
motacilla Spain 1272p52329 1319
gunggeed0yda Czech Republic 1512p44491 1558
QAZX United Nations 1316p64727 1730
luca61 Italy 1824p33146 18001.6

Welcome !
Latest 24h newbies
rasputinUnited Nations
dosmasdoses4United Nations
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vedchess543United Nations
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MrithuulUnited Nations
BatmonUnited States
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2015-01-26 21:25 CET (GMT +0100)
Chess Tactics Server has served
100,004,698 problems to
76,027 registered tacticians from 143 countries.