Logic Masters Deutschland e.V.

• Normal sudoku rules apply: Place the digits 1-9 once each in every row, column, and 3x3 box.
• Cipher: Each of the digits 0-9 is represented by a distinct letter from A-J. A two digit clue does not have 0 as its first digit. The key below the grid can be used to take notes, but does not need to be filled to trigger answer check.
• Copycat Cells: Place 9 Copycat Cells into the grid so that there is exactly one Copycat Cell in each row, column, and 3x3 box. Each Copycat Cell must contain a different digit. 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.
• X-Sums: A clue adjacent to a row or column represents the sum of the values in the first X cells in that row or column, where X is the value of the first cell in that row or column.
• Killer: The values of cells in a cage must sum to the total in the top left corner. Digits may not repeat within a cage, but values may.

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.