Big Sudoku Puzzles
Fill each empty cell so that every row, every column and
every 4x4 box contains the digits 0 to 9 and the letters A to F.
B001
B002
B007
B008
B013
B014
B019
B020
B025
B026
B009
B003
B015
B021
B027
B010
B004
B016
B022
B028
B005
B006
B011
B012
B017
B018
B023
B024
B029
B030