I think this must be the basic principle of the studless wall. workin around the corner. What you see is the basic wall without tiles. the tiles have to be put on afterwards. For a good looking (and good working) wall, you have to make the wall 10 bricks long. What do you need? The black pieces: brick 1x1 with studs on all 4 sides yellow/green: brick 1x1 with studs on 2 sides red: technic brick with hole on 2 sides (These colour are only there for showing how to build. Best effect is off course when you use bricks of one colour). When you work around the corner you have to use either the yellow or green brick in order to be able to fit the tiles on the studs properly. The other one (green or yellow) can than again be a brick 1x1 with studs on all 4 sides, depending on how you placed you corner technic brick with hole on 2 sides. This corner brick can also be a normal 1x1 brick, in case you use the brick 1x1 with studs on 2 sides on the yellow AND green place. All this being inspired by Jonathan Eric Hunter see for his marvelous creation: http://www.brickshelf.com/cgi-bin/gallery.cgi?f=145404 and the discussion on Lugnet: http://news.lugnet.com/announce/moc/?n=2994 (and: http://news.lugnet.com/build/arch/?n=1810) Daan Bargerbos