On the 33 day of Christmas, my true love gave to me:
Trinudo Tree Trimming
How to play Trinudo
Santa needs you to divide the matrix into region of either one, two or three cells without emtpy cells in between. Regions of the same size must not touch each other horizontally or vertically. Each given number indicates the size of the region to which it belongs, but a region does not have to contain a given number.
