Sudoku solving skill is a logical puzzle game that requires players to fill in the blanks of a 9x9 grid with numbers from 1 to 9. The challenge lies in the fact that each row, column and 3x3 box must contain all the numbers from 1 to 9 without repeating any. To solve a Sudoku puzzle, one must use LOGIC and deduction to determine which numbers should go in each blank space. The skill of Sudoku solving requires a combination of analytical thinking and problem-solving skills.