2-3-4 Outside Sudoku (Daily Sudoku League #9)

2-3-4 Outside Sudoku is an interesting variation of the classic Sudoku puzzle that adds a unique twist to traditional solving. In this version, some clues are placed outside the grid instead of inside the cells, which makes the puzzle more challenging and engaging. These outside clues help determine how the numbers should be arranged within the grid using logical deduction. Solvers must carefully interpret each boundary clue and apply standard Sudoku rules to complete the puzzle. It is a great way to improve logical thinking, focus, and advanced Sudoku-solving skills.

This 2-3-4 Outside Sudoku is my 9th contribution to the Daily Sudoku League. Can you solve this 2-3-4 Outside Sudoku puzzle?

2-3-4 Outside Sudoku Instructions

Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column, and outlined region. The numbers outside the grid appear in the second, third, or fourth cells of the corresponding row or column when viewed in that direction.