And here we have Part 2! It’s not been that long for you, but since the first part took six months for me to actually get around to writing it… well, this is much better!

Things get a bit more complicated this time, with buttons that can open/close doors and even holes in the floor and BOMBS. But what’s really crazy is how we actually get around to solving how to get to new sublevels this time… and how to take penguins back out of them. Things are getting complicated!

Here are all of the commits from part 1 up through part 2.

And here are all of the parts in this series so far:

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Months ago now¹, I started playing Gentoo Rescue (after seeing the Aliensrock video). At the core, it’s a Sokoban style puzzle game where you have to guide cute little sliding penguins to their color coded nests… but oh man does it start getting more complicated quickly.

On top of that, it has a really interesting nesting level concept–the level select screens are levels themselves. You can go several ’levels’ deep into levels or eventually further back out. And that’s just with how far I’ve gotten so far…

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Source: Day 5: Cafeteria

Full solution for today (spoilers!).

Part 1

Given a list of ranges (inclusive) and a list of IDs, how many of the IDs are in any range?

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Source: Day 4: Printing Department

Full solution for today (spoilers!).

Part 1

Given a grid of solid @ and empty cells ., count how many solid cells have less than 4 neighbors.

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Source: Day 3: Lobby

Full solution for today (spoilers!).

Part 1

Given a list of numbers, for each find the two digits in the number which if concatenated make the largest. Sum these values.

For example: 811111111111119 should be 89.

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Source: Day 2: Gift Shop

Full solution for today (spoilers!).

Part 1

Given a list of ranges a-b (ie 11-22), sum all values that are made of two repeated chunks of digits (ie 123123)

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Source: Day 1: Secret Entrance

Full solution for today (spoilers!).

Part 1

Implement a padlock with 100 values (0-99). Run each command (L23 to turn left by 23 places) and then output the number of times you landed on zero.

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Woodworm is a cute little PICO-8 puzzle game about a cute little worm… that eats wood. You can play it for free right now right here!

The goal is to turn this:

Into this:

There are a few rules to keep in mind:

• The block (and the worm) are affected by gravity

• The block can be split by into multiple pieces by eating it completely apart

  

• The worm can crawl up the side of blocks, so long as two (consecutive) segments of the worm are touching walls

  

And that’s really it.

So let’s solve it!

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And so it begins.

Freshly Frosted

It’s a cute little puzzle game about making a donut factory.

It’s a lot like Solving Cosmic Express in that it’s a ‘puzzle on rails’, you are basically routing around the grid from source to target. In the way, we have to go to certain tiles in a certain order (in this case, to apply toppings to our donuts).

Let’s do it!

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Source: Day 13: Claw Contraption

Full solution for today (spoilers!).

Part 1

Given Button A (ax, ay), Button B (bx, by), and Prize (px, py); how many times must you press Button A (a) and Button B (b) to reach the Prize? Sum 3a + b for each machine that has a solution.

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