Logic Masters Deutschland e.V.

Pick Your Neighbours

Who said you can't pick your neighbours?

Rules:

1. Normal Sudoku rules apply. The numbers 1-9 appears exactly once in every column, row and 3x3 box.

2. Orthogonal Sums. Two orthogonally adjacent cells cannot sum to 3, 4, 5, 16, or 17.

3. Consecutive Palindrome Lines. The string of digits on a gray line reads the same from either end. Adjacent digits on the palindrome lines must either be equal or consecutive. e.g. 5-4-4-5 and 9-8-9 are two ways to fill a line, but 3-5-3 cannot be used as 3 and 5 are not consecutive.

4. Sandwich Sums. Numbers outside the grid are the sum of the digits between 1 and 9 in that respective column or row.

Solve on f-puzzles

Solve on CTC

Please Enjoy!