Logic Masters Deutschland e.V.

The following puzzle is actually a 6x6 example puzzle of the main 9x9 one that I already finished before, and this one utilizes the idea of a loop concept that I've been tinkering for a long while. Despite its small size, the variety of logic in this one is more plentiful than one would expect at first, and this is probably one of my favorite 6x6 puzzles to set up to date.

This loop concept also appeared in the previous 6x6 pack but from this one here and so on, I would swap the functions of the arrow's colors and also I would add an extra restriction for the loop to provide some more interesting interactions with the concept. Honestly, there may be like dozens ideas for these kinds of interaction but it's rather safe to start slow from here x)

The main (harder) 9x9 one shall be uploaded few days after this so stay tuned for that! For now, let's see how this one goes:

(Setter note: it's also easy to make some mistakes/false assumptions with this kind of concept so careful notations are highly recommended)



Rules:

- Normal 6x6 Sudoku rules apply: every row, column and 3x2 box contains digits from 1 to 6 each once.

- Draw a one-cell wide loop that travels orthogonally through some cells in the 6x6 grid. The loop doesn't intersect itself but may touch itself at some points (orthogonally or diagonally).
LOOP VARIANT: Along the loop, orthogonally adjacent digits must alternate between low digit {1,2,3} and high digit {4,5,6}.

- A digit in a cell with blue arrow[s] indicates the combined amount of cells along the indicated direction[s] that belong to the loop, not including itself.
- A digit in a cell with red arrow[s] indicates the combined amount of cells along the indicated direction[s] that DO NOT belong to the loop, not including itself.
(N.B: a cell with arrow[s] may or may not belong to the loop)

- An outside clue of a row/column shows how many grid edges the loop goes through within that row/column. For such case, a grid edge is considered as the edge shared by two orthogonally adjacent cells in a row/column (and this doesn't include the overall 6x6 grid border).



Puzzle:  Penpa plus  -  Sudokupad



The answer check in penpa link will trigger once all digits are correctly filled, as well as the loop being correctly drawn.
Good luck and have fun solving!