Puzzle de Lógica Numérica 8973

Tipo: Sudoku, Rectangular Blocks
Tamaño: 12
Puntos: 94, Penalización:0, Tiempo : Initializing..  
123
456
789
ABC

Reglas:

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.