Logic Masters Deutschland e.V.

"Attack of the Zeros: Part 1" from the Cracking the Cryptic Discord monthly prompt.

- Normal sudoku rules apply to the **absolute value** of *every digit from 0 to 8.*

- The solver must shade every cell to assign a positive or negative value to every digit except zero such that *every row, column, and box must sum to zero.* Zero is to remain unshaded.

- The positive or negative value assigned to each digit is considered the "actual value" and is the same throughout the puzzle i.e. if it is determined that 1 has a positive value in a cell, then 1 must have a positive value in all instances of 1 in the puzzle.

- The *actual values* (positive or negative) of digits on an arrow path sum to the digit in the circle.

- The *actual values* of digits along the thermometer must increase from the bulb end.

- White dots join cells with consecutive *actual values.* All possible white dots have been provided.