Logic Masters Deutschland e.V.

After solving From A to Zeta by zetamath, I really enjoyed the strange logic that came about from the ciphered numbered room clues. I had a go at setting a vanilla ciphered numbered rooms puzzle but it never went anywhere. Fast forward a few weeks and Scojo's setting saturday wheel spins ciphers + clones, and it turns out clones were the perfect addition. Consensus testing estimate was a slightly scary 5 stars. Good luck!

• Normal sudoku rules apply: Place the digits 1 to 9 once each in every row, column, and 3x3 box
• Cipher: The letters A to I represent distinct digits from 1 to 9. Which letter corresponds to which digit is to be determined by the solver
• Numbered Rooms: Clues outside the grid are numbered rooms, and give the digit to be placed in the Nth position in that row or column, where N is the digit in the first position
• Clones: Identical grey shapes are clones, where the same digits appear in the same position. (Clones have been marked with cages for ease of visibility, but digits may repeat in a cage)

Play in Sudokupad (filling in the 9x9 grid only necessary to trigger answer check, but aide-mémoire and outside cells can be typed in to)

Download full solution guide (PDF)

Numbered Rooms Example
If you're considering doing a ciphered numbered rooms puzzle, you are probably familiar with the constraint. But on the off chance, this image hopefully explains how they work.

A Note on Marking
Finding a suitable way to mark this grid, with letters, digit candidates and cloned cells might be the hardest part! I used..

colours for cells which contain the same digit, and colours in the aide-mémoire where the colour can be limited to a small set of possible letters, and letters in the grid for locations for the ciphered digit candidates, and digit candidates in the aide-mémoire until the letter was assigned to one or two digits. You may find something better. I'd love to know.