Rules: Paint some squares black so that all possible different paintings of a 2×2 square can be seen in all 2×2 squares. Numbers outside the grid indicate the amount of painted cells in the corresponding directions, in order. Painted cells of a 2×2 square cannot touch another 2×2 square’s painted cells.
Background: This type is one of my inventions. I used first time for OAPC 2. Also it used in Finals of 18th WPC. In a different style appeared in 14th Polish Championship, also similarly used in Russian Puzzle Championship 2012. “Seramik” is a Turkish word. It means that “ceramic tile”.