Logic Masters Deutschland e.V.

This puzzle was inspired by the RAT RUN series by Marty Sears, as well as being a sequel to my own puzzle Cat Fun, and an official entry in my Copycat series!

• Normal sudoku rules apply: Place the digits 1-9 once each in every row, column, and 3x3 box.
• Poppy the cat is playing hide-and-seek with his brother Leon. Leon has already run around the house and found a hiding place in the center of the house (r5c5). Poppy, starting from the northwest corner of the house (r1c1), must now copy that path and track Leon to his hiding place. Poppy's path must not visit any cell more than once, cross itself, or pass through any gold walls. As well as moving orthogonally, Poppy may move diagonally if there's a 2x2 space in which to do so, but may never pass diagonally through the sharp corner of a wall.
• Kropki: If two cells are separated by a black dot, the value of one is double the value of the other. If two cells are separated by a white dot, their values are consecutive.
• Path Constraint: Any cell Poppy visits acts as a Copycat Cell. The value of a Copycat Cell is the digit in the cell rotationally opposite itself in the grid (180° rotation about the center of the grid). For example, if r2c3 is a Copycat Cell containing the digit 5, and r8c7 contains the digit 9, the value of r2c3 is the digit in r8c7, which is 9.

Solve in SudokuPad

1. Copycat Copycat: featuring Doublers, Slow Thermos, and Entropic Lines.
2. Copycat Yin Yang: featuring Yin Yang and Killer Cages.
3. Copycat Collaboration: featuring Zipper Lines and Odd Lots. (Collab with several other setters)
4. Copycat Blues: featuring Region Sum Lines and Same Difference Lines. (Collab with Marty Sears)
5. Copycat Choco Banana: featuring Choco Banana and Arrows.
6. Copycat Cipher: featuring Ciphered Digits, X-Sums, and Killer Cages.
7. Copycat Kropki: featuring Kropki Dots.
8. Copycat Mates: featuring Dutch Flat Mates, Dutch Whispers, and XV.
9. Copycat Banner: featuring Renbans and Nabners.
10. Copycat Fun: featuring path drawing and Kropki Dots.

Cat tax: