Placing correct digits might clear some fog. Each row, column, and region contains the digits 1-9 once each. A region is an orthogonally connected collection of cells. The shape and position of the regions have to be determined. There are 9 blue circles (with thicker outline) in the grid. Each blue circle belongs to a different region. Additionally there are black circles (with thinner outline). These can be in any region and a region can have more than 1 black circle. The digit in a circle counts the number of cells that the circle sees from its own region in the row and column up to the first border including itself. A small magenta arrow counts the number of region borders seen in the direction it points. If a cell has more than arrow, they see the same amount of borders in each indicated directions. The outer edges of the grid do not count as borders. On a white dot, digits are consecutive. On a black dot, one digit is double the other.