or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between Sudoku entry modes and a shading mode to mark off clues.)
Theme: Extra Regions
Author/Opus: This is the 223rd puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Standard Outside Sudoku rules: Insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region. Some numbers are given outside the grid. These numbers must appear in the first three cells in the corresponding direction.
Difficulty: 2.5 stars
Time Standards (highlight to view): Grandmaster = 3:15, Master = 4:00, Expert = 8:00