Fiendish Sudoku Puzzle

Fiendish Sudoku Puzzle

This samurai sudoku puzzle includes the usual 5 interlaced sudoku grids that result in one unique solution.

Logic is used, in conjunction with basic sudoku rules, to solve this fiendish puzzle.

Basic sudoku rules are:
l. Use digits 1-9
2. Digits can only occur one in each row, column and 3x3 subgrid within the larger puzzle.