Logic Masters Deutschland e.V.

I hope you enjoy this fun new sudoku variant. I hereby present:
The Sudoku Squirrel

Rules:

Normal sudoku rules apply.

Squirrel-Sudoku: The sudoku squirrel moves in L-shaped steps where the sum of the digits on the vertical leg has to equal the sum of the digits on the horizontal leg. The path of the squirrel starts at its hiding place (marked with an small 0 in the top left corner). The sequence of steps is given by the small numbers in the cells marked with a purple circle.

Here is a 6x6 example to illustrate the rule:
The first step is given. With a total of 11 for the horizontal leg (2 + 4 + 5) and the vertical leg (5 + 6), the rule of movement is fulfilled.
Solve the example here

Example:

And now the real puzzle. Please let me know how you liked it. I am happy to answer questions about the rules. Have fun solving!

Sudoku on f-puzzles

Bonus challenge: Safe the Sudoku Squirrel (not necessary for the solution code)
The sudoku squirrel has a very dangerous life. It is not allowed to jump into a cell a second time. So there is a constant threat of being trapped after taking a step without a possible way back to the hiding place.
In this Sudoku there is (at least) one way back from the end of the given way (17) to the heding place. Only one intermediate step is necessary. Can you find the corresponding cell and show the squirrel the way back?