Logic Masters Deutschland e.V.

Sudoku: Place digits 0–8 so that each digit appears exactly once in every row, column, and 3×3 box.

Edge mines: Each digit equals the total number of mines on that cell’s four edges (top, bottom, left, right). Each edge holds 0, 1, or 2 mines. Adjacent cells share the edge between them (with same mine count of that edge).

Given edges: Edges around the given digits are pre-marked:
• blue = 0 mines
• red = 1 mine
• red with a red × = 2 mines

All other edges are unmarked and must be deduced. Mark remaining edges yourself.(Pen tool under Settings ⚙).

Online play: https://sudokupad.app/ss5obmsty9

TIPS: This is a hybrid of Sudoku and Minesweeper. You need both Sudoku rules and the fact that adjacent digits share the mine count on their common edge. For example, an 8 forces 2 mines on each of its four edges, so none of its four neighbors can be 0 or 1. Likewise, none of the four neighbors of a 0 can be 7 or 8.The figure below shows one possible arrangement of digits in a box, together with mines on edges:

Mind the Edge ! 4x4: 000V0F.

Mind the Edge ! #1: 000UYM.

Mind the Edge ! #2: 000UZC.

Mind the Edge ! #3: 000V0U.

Other interesting puzzles:

Magic 30: 000UVI.

7x7 clover sudoku 4: 000UMX.

More of my games: hitodd.com.