The diagram shows a display with an inverted number, four buttons with numbers between 1 and 4 below it, and five LEDs to the right.

On the Subject of Not Memory

Memory is a annoying module but so is everything else on the bomb itself, so does it matter?

Press the correct button to disarm the module.
Only the one correct button needs to be pressed to disarm the module.
Pressing an incorrect button will register a strike and reset the module.
Button positions are numbered from left to right, starting from 1.

No lit LEDs:

  • If the display is 1, press the button at the position of the second button’s label.
  • Otherwise, if the first button is labelled ‘4’, press the button with the same label as the display.
  • Otherwise, if the last digit of the bomb's serial number* is odd, press the button labelled ‘1’.
  • Otherwise, press the button at the position of the display.

1 lit LED:

  • If there are no batteries on the bomb, press the button labelled ‘4’.
  • Otherwise, if the third button is labelled ‘1’, press the first button.
  • Otherwise, if the display is 3, press the button at the position of the third button’s label.
  • Otherwise, if the second button’s label matches the display, press the second button.
  • Otherwise, press the button labelled ‘1’.

2 lit LEDs:

  • If the display is 4, press the button with the same label as the position of the button labelled ‘4’.
  • Otherwise, if the second button is labelled ‘3’, press the first button.
  • Otherwise, if the fourth button’s label matches the display, press the button at the position of the display.
  • Otherwise, press the second button.

3 lit LEDs:

  • If the bomb has a parallel port, press the first button.
  • Otherwise, if the fourth button is labelled ‘1’, press the second button.
  • Otherwise, if the display is 2, press the button with the same label as the position of the button labelled ‘3’.
  • Otherwise, if the first button’s label matches the display, press the button at the position of the display.
  • Otherwise, press the button labelled ‘2’.

4 lit LEDs:

  • If the display is 3, press the button at the position of the second button’s label.
  • Otherwise, if the second button is labelled ‘1’, press the first button.
  • Otherwise, if the first button’s label matches the display, press the second button.
  • Otherwise, if the bomb has more than 3 indicators, press the button labelled ‘3’.
  • Otherwise, if the fourth button is labelled ‘4’, press the fourth button.
  • Otherwise, press the button labelled ‘2’.

5 lit LEDs:

  • If the bomb has no ports at all, press the button labelled ‘2’.
  • Otherwise, if the display is 4, press the button at the position of the fourth button’s label.
  • Otherwise, if the first button is labelled ‘3’, press the third button.
  • Otherwise, if the third button’s label matches the display, press the button at the position of the display.
  • Otherwise, if the second button is not labelled ‘2’, press the button labelled ‘2’.
  • Otherwise, press the third button.

* If the serial number contains no digits, treat it as even.