Every row, column and 3x3 box contains the digits 0-9 once each. To enable this, one cell in each row, column, and 3x3 box is a Schrödinger cell (S-Cell) ie it contains two digits. The diagonal (marked in blue) must contain the digits 0 to 9 once each. Digits on a purple line form a set of non-repeating consecutive digits in any order. Digits along a grey arrow sum to the digit in that arrow's circle. The sum of the digits in the two orange circles is equal to the sum of the digits along the orange line. Digits on the blue line have an equal sum N within each 3x3 box it passes through. Note that the blue line is partially hidden by the circle in R8C6. Digits in a cage sum to the clue in the cage's top left corner. The digits contained in the small white circles must each appear at least once in the 4 surrounding cells. Digits on the thermometer must increase from the bulb end. If an S-cell is on any arrow/arrow circle, cage or blue line, its value is the sum of the S-Cells's 2 digits.