Logic Masters Deutschland e.V.

Cut to the Feeling, by pmays123

• Normal 9x9 sudoku rules apply.
• YIN YANG: Shade some cells in the grid so that all shaded cells are connected orthogonally, and all unshaded cells are connected orthogonally. No 2x2 region may be entirely shaded or entirely unshaded.
• DIAMONDS: The number in a diamond equals the number of shaded cells in the four cells touching the diamond. A, B, and C represent three different numbers to be deduced by the solver.
• SENSORS: Circles and squares are sensors, i.e., they count the number of cells of a specific shading in the up to eight cells surrounding it *plus the cell it occupies* (up to nine cells total). Circles count shaded cells, and squares count unshaded cells.
• SHADED ARROWS: If a sensor's cell is shaded, then all digits in cells on the sensor's line sum to the digit in the sensor.
• UNSHADED NABNERS: If a sensor's cell is unshaded, then no two digits in any cells on its line (including the cell with the sensor) may have a difference of less than 2.

**Clarification: the square in box 9 sits on a single line. So, if r8c8 is shaded, then r7c9+r9c8=r8c8, and, if r8c8 is unshaded, then no two digits in this set of three digits have a difference less than 2.

Link to Puzzle: SudokuPad

I hope you enjoy this challenging puzzle. Questions and feedback are welcome. Have a great day! :)