Migration

A logic puzzle. Solve the map by writing inside the grid.

Elements

A map indicating general climate/temperatures in cells, birds and their wants, possibly parts of flight paths

Objective

Get every bird to where they want to go, by connecting them to a valid destination with a series of arrows/path.

Pattterns

  • There are 3 types of birds (patterns/colors). As soon as their migration path reaches a cell of that type, they are happy and stop flying.
  • Their path is a sequence of arrows, without loops or branching off.
  • Their path can go straight or turn (90 degrees) any time.
  • Multiple paths can’t collide or cross.
  • Edge Clues indicate how many “birds” are spotted in this row/column, which just means how many paths from unique birds pass.

Expansions

  • Birds have different movement rules. For example: “Their path can only turn one diagonal step at a time. (So left -> top left -> top -> top right -> …)”
  • Different height levels? So that paths can go below/above each other?
    • The different types of birds have a different height anyway! They can cross, but only orthogonally (so one vertical, one horizontal), and keep a good space between arrows to indicate this.
    • Then, Edge Clues on the other side, can indicate the number of “meetings” in the air.