Process of Elimination: Use the process of elimination to determine where numbers cannot go, thereby identifying where they can go.Check for Constraints: Ensure that the placement of a number doesn’t violate the basic Sudoku rules.Look for Certainties: Always place numbers that are certain first and then work on the probable ones.Use Pencil Marks: Employ pencil marks to keep track of possible numbers for each cell.

Avoid Repetition: Pay attention to avoid repeating numbers in each row, column, and irregular area.The four 3x3 regions that appear in two separate grids need to satisfy the rules for both grids at the same time. It consists of 5 inter-linked standard Sudoku grids. Unique Numbers: Ensure every row, column, and irregular area has unique numbers from 1-9. This is an example of a finished Samurai Sudoku puzzle.Each of these areas must also contain the numbers 1 through 9 with no repetition. Irregular Areas: Unlike classic Sudoku, the 9x9 grid is divided into several irregularly shaped areas.No Repetition: Each row, column, and outlined area must contain no repeated numbers from 1 to 9.Numbers: You must fill each cell of the grid with numbers from 1 to 9.Grid: The puzzle consists of a 9x9 grid.The primary distinguishing feature of this puzzle is the presence of irregularly shaped, non-rectangular areas, which replace the traditional 3x3 boxes found in standard Sudoku. Jigsaw Sudoku, also known as 'Geometry Sudoku', 'Geometry Number Place', 'Irregular Sudoku', or 'Kikagaku Nanpure', is a variant of the classic Sudoku puzzle.