Basics
The 'lights out' puzzle sometimes appears as an Ushabti puzzle in the Lower Tomb. Stepping on a button flips the light's state between off an on, as well as the buttons directly next to it in the four cardinal directions. The objective is to get all buttons lit at once.
Traditionally, you are meant to turn all the lights off (like in the original 1995 game), which is why it's called 'lights out'. Either way, it doesn't really matter as you can flip light states for whichever kind puzzle you are solving.
- In this guide, puzzles will be depicted as a 3x3 grid of numbers, where a 1 means a light is on and 0 means a light is off.
- Lights marked with an 'x' can be in any state.
- Solutions will be shown in the same way, except a 1 denotes the button(s) you have to press (in any order) to solve the puzzle.
Universal Solving Algorithm
This is the algorithm to solve any 3x3 'lights out' puzzle!
Remember, any pattern and solution can be rotated and it will solve just as easily!
1 - Light up the two top rowsStarting from the top, step on buttons underneath OFF lights to turn them ON. Continue with this until the top two rows are all on.
Now your puzzle should look like this:
111
111
xxx
2 - Solve the puzzle!Lighting up the top two rows like this leaves only 5 essential remaining options for solutions (7 solutions, but two of them are just reversed versions of the same solution). Now all you need to do is remember them!
These solutions are as follows with ways to remember them (that I use):
Puzzle:
111
111
001
Solution:
001
011
101
Mnemonic:
Complete the triangle. Start from the outside, and cross over the inside.
Puzzle:
111
111
100
Solution:
100
110
101
Mnemonic:
Same as above but reversed.
Puzzle:
111
111
101
Solution:
111
010
000
Mnemonic:
Tetris T pointing at the only unlit light
Puzzle:
111
111
000
Solution:
010
111
000
Mnemonic:
Tetris T standing upright on a table.
Puzzle:
111
111
010
Solution:
101
101
000
Mnemonic:
Two towers.
Puzzle:
111
111
110
Solution:
011
100
101
Mnemonic:
IDK, I just remember this one. It's symmetrical, I guess. Use any pattern you spot that relates to something memorable, and remember it that way.
Puzzle:
111
111
011
Solution:
110
001
101
Mnemonic:
Same as above but reversed.
Video Example
https://youtu.be/fpWYSWNMKnA
Source: https://steamcommunity.com/sharedfiles/filedetails/?id=3221798100
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