Project Gipf is a set of six abstract games invented by the Belgian designer Kris Burm. Individual games in the series have won numerous awards including
Games magazine's "Game of the Year".
Tamsk was originally part of the series, but has since been replaced by Tzaar.
Although none of the games is similar to chess, they are all quite challenging. I have played all of them, and found each enjoyable in its own way. I'd have to say that
Yinsh is my favorite, since its strategy and tactics are more intuitively clear for beginners.
I think these games might be of interest to chess players. The components are beautiful and well made, with large boards and heavy plastic pieces. Games in the series can be purchased separately and are in the $30US price range.
Here's a YouTube video of Gipf Project's inventor, Kris Burm, explaining how to play
For more information, check out the following Wikipedia article: