Logic Masters Deutschland e.V.

Rules:

1. Normal sudoku rules apply.

2. Digits separated by a white dot must be consecutive, digits separated by a black dot must have a 1:2 ratio.

3. Bridges: In the grid, there are three rivers that have to be crossed. This only can be done by building some 'bridges'. A bridge is a vertical line of length 3 which completely passes through a river, and on which adjacent digits differ by a multiple of 3. In building the bridges, one must ensure that each column and each 3x3 box contain exactly one bridge.

Link to CtC

Link to F-Puzzles

Puzzle: