Tak is a two-player abstract designed by James Ernest and Patrick Rothfuss, after a game described in Rothfuss' fantasy novels. The rules are freely available from James Ernest's website, and it can be played on a variety of board sizes with readily-available tiles - so long as they can stack and also stand on their side.
In this video I build a copy of Tak with Sycamore and Black Walnut pieces, and craft a marquetry board that can be used to play 3x3, 4x4, 5x5 or 6x6 games. (In a pinch you could manage 7x7, given the wide borders, but 8x8 is probably out!) The capstones are hand-carved from the same woods as the pieces.
The angled sycamore pieces are finished in shellac, since it's less yellowing than danish oil, and I wanted to keep them as light as possible; the rounded black walnut pieces are given a few coats of danish oil with a dark stain (to make them as rich and dark a colour as possible) and then a coat of creamed beeswax which is then buffed out shortly afterwards. The marquetry board is given a couple of coats of hard melamine lacquer with a light sanding in between to get a smooth, robust surface.