Logic Masters Deutschland e.V.

This is the fourth puzzle in the Renban Walls series. I'd love to hear your thoughts about the puzzle.

Thanks to matt m, Roger Wrightshoe, and Plostoni for testing and feedback.

Renban Walls Series

1. Mini Renban Walls (Zetamath Solve)
2. Crumbling Walls
3. Gatehouse
4. Watchtower

Rules:

Normal sudoku rules apply. Normal renban and german whisper lines. Normal killer cages. The cages have the same sum.

Digits touching a purple renban wall form a non-repeating set of consecutive digits. A wall touches all cells which overlap any of its corner or edge segments. A wall also divides its set of digits into regions. Digits in a region are consecutive and can appear in any order.

Informal Rules:

Renban walls are three renban in one. One side of the wall: renban. The other side of the wall: also renban. The whole thing: you better believe it's renban!

Comments are always welcome. Have fun!

Streamers have permission to use this puzzle. Recommended betting cell is r9c9.

Play in SudokuPad

Playable Example:

The following images show a playable example and its solution.

Play Example in SudokuPad

Hints: The straight length-three wall and the Z-shaped length-three wall and can only divide the digits into 123|456. The L-shaped length-three wall has two options: 12|3456 and 1234|56. The straight length-two wall has a few options: 12|34, 23|45, and 34|56. The bent length-two wall has even more options: 1|234 and 123|4, 2|345 and 234|5, 3|456 and 345|6. The length-one walls can be any consecutive pair of digits.