I believe the work you're referring to was created by Anibyte Studio, based in Spain. I think if memory serves it was founded by Victor Garrido, and he might have actually produced the animation and clip you're talking about. Several clips appeared onlione and eventually became the concept for an animated feature called…
Wow, I remember this! It's older than 5 years I think. I would say early 2000's. I don't remember the name but I recall the site having a lot of concept art, it looked great. I think it was from Spain. Also I remember the artist working on another short or TV pitch having chess pieces as characters iirc. Been looking for…