The Great Divide

by Marty Sears by Marty Sears

CASE 3724

The Great Divide

Not graded: we can’t read all its rules yet
  • Nabner lines

The brief

ISOFILL: Divide the grid into 10 regions, each with 10 orthogonally connected cells. Every cell in a region should contain the same digit. All of the digits 0-9 must appear in the grid.

NABNERS: No two digits on a yellow line may be the same or consecutive.

ZIPPERS The two digits at either end of a lavender line sum to the digit on the central spot.