Number Logic Puzzle 8720

Type: Sudoku, Rectangular Blocks
Size: 25
点数: 212, Penalty:0, 時間 : Initializing..  
12345
6789A
BCDEF
GHIJK
LMNOP

Rules:

The goal is to fill a grid with digits so that each column and each row contain the digits only once.

This puzzle has Rectangular Blocks. Every block contains each of the digits only once.