Logic Masters Deutschland e.V.

This puzzle is a small homage to Florian Wortmann and his wonderful Colorado series. I created it because I am a huge fan of those puzzles and wanted, in my own way, to revive some of the beautiful solving moments that the series has given me.

For full transparency: this puzzle was created with the help of AI. I guided the construction, tested the puzzle, and asked the AI to aim for a Colorado-like structure: sparse but complete XV clues, no given digits, and small final translator clues. This puzzle is not part of the official Colorado series; the inspiration, of course, comes from Florian Wortmann.

Play on SudokuPad

Rules:

• Normal Sudoku rules apply.
• All possible X and V clues are given. Orthogonally adjacent cells separated by an X sum to 10. Orthogonally adjacent cells separated by a V sum to 5. Orthogonally adjacent cells without an X or V do not sum to 10 or 5.
• Sandwich clues outside the grid give the sum of the digits between 1 and 9 in the corresponding row or column.

Many thanks again to Florian Wortmann for the Colorado series, which inspired this puzzle.