Saturday, 12 October 2024

Walker

Today, I’m visiting the Oyakodori Forest of Birds! 🌲 In this Supersized forest, there’s room for many nests. The birds here love puzzles, and eagerly await their turn to be the featured bird of the day! After a busy day, they fly back to this forest and find their way back to the nest. There are a lot flying around today! 🐦‍⬛ 🦆 🦅 🦉 🦜

🚨 Important Interface Note: Oyakodori has a "Display as object moving" option at the top. I highly recommend unchecking it, which makes this genre’s logic easier to see. (You can toggle it on while solving to see which birds are in nests.)

Rules: Move all of the circles (birds) into shaded cells such that each orthogonally connected group of shaded cells (nest) contains one black circle and one white circle. A circle may move vertically and horizontally any number of times. Each cell may be used at most once: as a circle’s starting point, part of a path, or a circle’s final destination. White circles must each cross at least one region boundary. Black circles may not cross region boundaries.

Here’s a GAPP 101 about a key idea in this puzzle: Several white circles need to travel far to cross a region boundary.

Try the first GAPP Oyakodori by Eric Fox here: Archive: Thursday, 18 May 2023

Example (Penpa, by Eric Fox): https://tinyurl.com/mf9fwk4f

Solve in 5:00 or under for a Speedy Sloth! 🦥
Complete in 9:00 or under for a Quick Crab! 🦀
And all solvers who complete the puzzle will earn a Gathering Garganey! 🐦

Puzzle (Penpa): https://tinyurl.com/m7hn5dke