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 of the same colour are the same value. Shaded squares are even. Shaded circles are odd. Numbers outside the grid are X-sums (the first number in that row/column indicates how many of that row/column sum to the number outside. For e.g. a 14 outside the grid with a 3 as the first number next to the 14 means that the first 3 numbers in that row/column sum to 14).