Logic Masters Deutschland e.V.

This is the second time setting the puzzle using the new variant called "Switching Parity". Here is the explanation with an example to explain the new variant that I forgot to include previously.

6x6 example:

As you can see, r1c6 and r2c6 have different parity, so it counts as 1. Then, r2c6 and r3c6 have same parity, so it does not count. This continues until r6c6. So, the switching parity only occurred 3 times, at r1r2c6, r3r4c6, and r5r6c6. So, that's how the new "Switching Parity" clues work.

Let's get back to this puzzle, shall we?

Rules:

1. Normal sudoku rules apply.

2. Clues outside the grid indicate how many times any two orthogonally connected cells along that row/column having different parity.

3. Cells separated by a white dot must be consecutive. Cells separated by a black dot have a 1:2 ratio. Not all dots are given.

4. Cells with a filled circle must be odd. Cells with a filled square must be even.

Do have a go!

Link: CTC