On the Subject of Cacti's Conundrum

What a prickly conundrum.

Hello friends, welcome to my conundrum! Hope you know your binary!

How to solve

  • Convert the four black and white LEDs into binary.
    • A white LED is a 1, a black LED is a 0.
  • You need the color of the colored LED.
    Colors include blue, lime, orange and red.
  • You also need the binary converted to decimal. The intersection of the color and binary in the table tells you which button to press.
  • The 3 bars represent the 3 stages of the module.
  • If you don't know binary, here's how it works:
    • Start with the number 0.
    • If the rightmost LED is white, add 1.
    • If the LED to the left of that is white, add 2.
    • If the LED to the left of that is white, add 4.
    • If the LED to the left of that is white, add 8.

Answer table

NumberBlueLimeOrangeRed
0JeevesChickenSharkChicken
1ChickenHammerCactusHammer
2SpoonJeevesHammerJeeves
3ChickenSpoonSpoonCactus
4SpoonChickenHammerShark
5CactusChickenJeevesCactus
6HammerSharkSpoonJeeves
7CactusSpoonJeevesChicken
8ChickenHammerSharkHammer
9SharkSharkCactusShark
10JeevesChickenChickenCactus
11CactusSpoonHammerShark
12HammerJeevesSpoonJeeves
13SharkCactusSharkHammer
14JeevesChickenChickenSpoon
15HammerJeevesCactusSpoon