Logic Masters Deutschland e.V.

Coloured sudoku. Mixed rules. Link to puzzle. sudokupad. There is a video solution and more puzzles on youtube channel "sudoku spot" video solution. Rules: Normal sudoku rules apply. Cells separated by an X add to 10. Cells separated by a V add to 5. Cage cells add to the number in the top corner of the cage. Numbers outside the grid are numbered rooms. The first number inside the grid next to it shows (starting from that end) how many cell along that row or column the outside number is. Cells of the same colour are the same value. The initial coloured cells given contain only 4 numbers (so some different colours must contain the same numbers).