Logic Masters Deutschland e.V.

Rules

• Hashi
• Shade some cells gray (representing "water") such that they form a single connected region that contains no full 2x2 area.
• Each orthogonally connected group of unshaded cells (or "island") contains exactly two numeric clues (which may occupy the same cell). One of those clues represents the number of cells that this island is made up of.
• The other clue gives the number of bridges connecting the island to another island.
  A bridge is a line connecting the centers of some cells that starts and ends on cells of two different islands and travels only accros water cells.
  Bridges may not turn and don't cross each other, not even at the start or finish cell.
• The bridges must join the islands to one interconnected network, meaning you can travel from each island to every other island just by following bridges (multiple brigdes and travalling accros other islands might be needed).
• Every clue is part of an island.
• Questionmarks replace a positive integer as a clue.
• Star Battle
• Place some stars in cells such that there are exactly two stars in every row and every column.
• Stars don't touch each other, not even diagonally.
• Every island must contain excactly two stars.
• Stars cannot occupy the same cell as a brigde (not even on the start or end of a bridge).

Links

Solve on Penpa+