Currently we provide 36,863 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.

Enjoy!

Top 10 active tacticians
	Handle	Tries	Country	Rating
	Erlendm	68418		2205
	Sergiochess	73727		2174
	byakuugan	146552		2133
4	LuisPSupi	4403		2124
5	Improchess	81414		2086
6	blueeyed	7078		2078
7	cactus8	4212		2035
8	tzzzzz	2756		2031
9	VerySlow	24676		2018
10	Aaron	24836		2007

14 actions this minute
Tactician	Country	Rating	Problem	Rating	Time [s]
androfont		1515	p05919	1522
goldenrule		1917	p05051	1831	9.2
rakko		1548	p23777	1661	17.1
latihan		1622	p01159	1715
androfont		1515	p34310	1361	6.3
behrooz		1871	p07451	1762	4.8
goldenrule		1919	p31119	1767	36.9
behrooz		1871	p25012	2073	17.7
latihan		1622	p33588	1492	2.9
rakko		1548	p31108	1710	26.9
androfont		1517	p40071	1621
latihan		1622	p38484	1627	5.1
CHINOCHESS		1504	p08030	1743	18.3
androfont		1515	p18492	1382	2.9