Kuromasu (Mini Puzzles Series #9)

This puzzle I created for the practice of US Puzzle Championship 2009. This is my first Kuromasu puzzle, so quite an easy one, and it will help beginners to get familiar with the Kuromasu instructions. That time, I created some more Kuromasu puzzles. This easy Kuromasu puzzle, I am re-publishing as the 9th puzzle in Mini Puzzles Series.

Rules of Kuromasu puzzle

Add black squares to the grid (only in the empty spaces) so that each number equals the count of white squares that are directly in line (horizontally and vertically) with that number's square, including the numbered square itself. Black squares cannot share an edge, and all remaining white squares must be connected orthogonally.