Logic Masters Deutschland e.V.

Place all domino plates from 1-1 to 4-4 into the grid. Some numbers are already given. Dominoes must touch according to common domino rules, i.e. orthogonally touching cells belonging to different dominoes have to contain the same number.
Clues outside the grid indicate how many numbers can be seen from the corresponding directions, taking into account that higher numbers block the view of lower or equal ones.