Yajisan-Kazusan #1
Colour the grey cells of the grid black or white. Black cells must not be orthogonally neighbouring (but diagonally). Cells with numbers can also be blacked out.
The numbers in unblackened cells indicate the number of black cells in the direction of the arrow (up to the edge of the grid, not just up to the next number cell).
The numbers in blackened cells are meaningless; i.e., the number does not necessarily indicate how many black cells there are in the direction of the arrow!
All white cells must form a single orthogonally contiguous area.