Currently we provide 23,803 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.

If you decide you want to join our community, you'll just need a valid email address to register and join our community.

 Guía de utilización en Español. Thx to 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.

To offer help or to make proposals send a message to the operator.

Enjoy!

Top 10 active tacticians
	Handle	Tries	Country	Rating
	element	7873		2471
	fastkicker	5782		2270
	Sergiochess	48305		2242
4	morpy	83126		2231
5	Faramir (IM)	71330		2223
6	byakuugan	102451		2176
7	mutlumusun	1555		2175
8	Saghi	1676		2170
9	repla	7677		2168
10	xxxyz	355		2152

20 actions this minute
Tactician	Country	Rating	Problem	Rating	Secs.
hypersyne		1329	p32135	1337	1.6
mira		1545	p52294	1584	6.5
obxure		1311	p58788	1432
hypersyne		1323	p56734	1378	2.8
mira		1544	p11475	1584	7.0
Kiilt		1328	p08956	1317	11.4
MRSimoes		1150	p21392	1110	4.5
obxure		1310	p57296	1244	5.1
hypersyne		1320	p57628	1283	6.1
TheSweens		1188	p40729	1510
mira		1544	p48741	1431	7.7
MRSimoes		1137	p14893	1378	6.1
Kiilt		1326	p33867	1450	6.9
harrypatzer		1413	p06371	1470	6.0
obxure		1311	p44329	1442	18.1
mira		1545	p39886	1631
hypersyne		1326	p54984	1303
yohan		1368	p49791	1258
MRSimoes		1132	p14779	932	2.2
harrypatzer		1410	p35935	1467	5.9