On the Subject of +

Think positive! At least you’re not about to die an explosive death! Oh wait...

The module has a white plus sign against a black background.

After every minute of bomb time (real time in Time Mode), a sound will be played and the plus sign will change color. Take note of the new color and the corresponding quantity in the table below.

RedBlueYellowGreenMagenta
Battery HoldersIndicatorsPort PlatesUnsolved Modules3rd SN. Character

After all other non-ignored modules have been solved:

  1. Get the accumulative sum of all the figures. (If the sum is 0 then ignore the later steps and submit A in Tap Code)
  2. Convert it into base 25.
  3. Reverse the string then separate the characters.
  4. Convert them into letters using the table below.
0123456789ABCDEFGHIJK
ABCDEFGHIJLMNOPQRSTUV
LMNO
WXYZ
12345
1ABCDE
2FGHIJ
3LMNOP
4QRSTU
5VWXYZ

Example

  • Sum: 235
  • Base 25: 235 -> 9A
  • 9A -> A9 -> A 9
  • A 9 -> L J -> LJ

Then submit the letter sequence in Tap Code.
(Each letter is represented by its row’s number of taps, a pause, then its column’s number of taps)