Dollar Sudoku – Expert

A expert Sudoku puzzle whose given clues form the shape of a dollar, with 29 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, Pointing Pair, Claiming, X-Wing, Naked Pair, Skyscraper, XYZ-Wing, XY-Chain, Naked Triple, Unique Rectangle, XY-Wing.