Normal Sudoku Rules Apply
Within a cage digits must not repeat, and their values always sum to a whole number.
This is equal to the number in the top left corner of the cage, if given.
In every row, column and box there is a single wild digit, and each digit is wild exactly once.
A wild digit applies two modifiers to the grid, one from each of the groups below.
Group 1
- 1a: The wild digit only contributes half its face value to any cage total.
- 1b: The wild digit must be in a 2:1 ratio with at least two of its orthogonal neighbours.
- 1c: The wild digit must have the opposite parity (odd/even) to all its orthogonal neighbours.
Group 2
- 2a: The orthogonal neighbours of the wild digit contribute double their face value to any cage total.
- 2b: The wild digit must be consecutive with at least two of its orthogonal neighbors.
- 2c: The wild digit must be less than all its orthogonal neighbours.
One group applies to the entropy sets (
{123},{456},{789}) and the other to the modularity sets (
{147},{258},{369}).
Which group is which, and which modifier is applied to which set is to be determined by the solver.
E.g. If you were to determine that the set {258} applies modifier 1a and the set {456} applies modifier 2b, then the wild 5 would only contribute 2.5 to any cage total and would need to be adjacent to at least 2 consecutive digits (4 or 6)
The bottom row of the grid can be used to record any deductions made and does not form part of the final solution.
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