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Fill the grid with the digits 1 to 6. Each row and each column has exactly one of each digit. Each red region must contain exactly 1 pair of numbers. Each cyan region must contain exactly 2 pairs of numbers. Each yellow region must contain exactly 3 pairs of numbers.

The clues along the edges tell you how many skyscrapers you can see from that vantage point.

Fill the grid with the digits 1 to 9. Each row and each column has exactly one of each digit. Each red region must contain 1 pair of numbers. Each cyan region must contain 2 pairs of numbers. Each yellow region must contain 3 pairs of numbers.