Number Logic Puzzle 8178

Type: Sudoku, Rectangular Blocks
Size: 20
Points: 228, Pénalité:0, Temps : Initializing..  
1234
5678
9ABC
DEFG
HIJK

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.