Full Nurikabe (450)

Shade some cells to get a valid Nurikabe solution:
Shade some cells so that the grid is divided into white regions, each containing exactly the same number of digits as indicated by their value. The area of each white region must be equal to the number it contains. Two white areas may touch each other only diagonally. All shaded cells must be orthogonally connected to each other, but no 2x2 group of cells can be entirely shaded.

Reference: WPC 2016 (65)