Originally posted by buddy2
i got disgusted with ct-arts after making my hundreth queen sac for mate. Usually at my club you win a pawn and grind it out to the end game. in that sense i think emrald.net is far superior.
It is true that many of the puzzles in CT-ART are mate, but many are not. I wouldn't discount it all as queen sacrifices, either. There are many themes and they may be just been in one that you didn't find benifitial.
emrald.net, also known as chess tactics server, is also a great resource. It is more geared towards speed chess, as they give you only 3 seconds to solve the thing. But it is great practice at seeing the simple (not always so simple for me) tactics.
The CT-ART has much more difficult puzzles, often requiring several minutes to solve. Many are unsolvable for me.