This is my first Sudoku-based puzzle ever. It's based on the "first hidden skyscraper" rule set: The numbers in the grid tell you the height of a building in that square, and the numbers outside tell you the first skyscraper you *can't* see. ABCD are variables. #puzzlesetting
I'm not 100% positive this has a unique solution; my desktop is crunching that right now. I'll update this thread if it ends up being bad. If you want to see a similar problem solve:
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