Sun Sudoku – Expert

A expert Sudoku puzzle whose given clues form the shape of a sun, with 28 clues. Every special-shape puzzle on this site is also a regular Sudoku with a single unique solution, and requires these techniques to solve: Naked Single, Hidden Single, X-Wing, XYZ-Wing, 2-String Kite, W-Wing, XY-Chain, Unique Rectangle, Discontinuous Nice Loop, Claiming, XY-Wing.