As an American, I spend far too much time thinking about urban design. This puzzle prompts thoughts of apartment buildings in Barcelona. They didn’t turn out the way Ildefons Cerda planned, but they’re certainly distinctive.
Rules:
Normal Sudoku rules apply.
Digits within cages do not repeat, and sum to the total in the top-left corner of the cage.
In cells separated by a black dot, one digit is double the other. Not all possible dots are given.
Estimated difficulty: 2 out of 5
Solve on SudokuPad