Different Around Sudoku (811)

Other names: Count different Sudoku

Instruction:

Apply classic sudoku rules. The small number in a two-cell cage indicates how many different digits surround the cage. Up to 10 cells touching the cage by a side or by a corner should be inspected.

Reference: WPF (1)

Notes:

Variants:
- Circle with number between two cells instead of a cage: Number in a circle tells the count of different digits in up to 10 cells touching the pair of cells with the circle.

Examples:

WPF Sudoku GP 2019 - Round 3 (126)

Parent puzzle:
Count different Sudoku