The Rise (and Fall?) of Grandmaster Puzzles

The Outside Sudoku puzzle post and rules are at this web link: https://www.gmpuzzles.com/blog/2023/0...
Online solving link: https://gmpuzzles.com/s/130209Order

The Skyscrapers puzzle post and rules are at this web link: https://www.gmpuzzles.com/blog/2023/0...
Online solving link: https://gmpuzzles.com/s/130208Count

More of these great puzzles can be found in downloadable books in our e-store: https://shop.gmpuzzles.com

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