Logic Masters Deutschland e.V.

A connected subway network is to be drawn into the diagram, that runs horizontally and vertically from field center to field center and does not leave the diagram anywhere. Lines may branch or turn at the field centers, but there are no dead ends. The given hints indicate how many of the corresponding line shapes occur in the corresponding row or column. The line shapes may also be rotated.

All given numbers are "knapp daneben", i.e. one too large or too small.