Kurotto is a shading genre. The rules are very simplistic and make for a great introductory genre. While I haven't dabbled too much in kurotto solving, everyone shoud give it a try. Here are the rules :
- Shade some cells in the grid to form orthogonally connected groups.
- Clues cannot be shaded and numbers indicate the total area of all groups directly adjacent to the clue. An empty clue indicate an unknown total area.
With only 2 lines, the rules added to a solved example here makes it very easy to understand but can make for quite the tough puzzle. This post is only about easier puzzles, but I won't refrain from making harder ones next time.