On the Subject of Cruel Keypads

Do you know Korean?

• This module displays Korean letters, a colored bar, and a stage counter. There are 3 stages. Striking will reset the module to stage 1.
• To disarm the module, press the symbols in the correct order. For each stage, use the Venn diagram below to find out which table to use.
• Apply the special rule and input the symbols in the correct order.

	This is stage 1 or 3
	Any of these symbols are present: ㅇ ㅈ ㅉ ㅟ ㅋ
	If the color of the strip contains a letter* in common with the serial number.
	The strip is red, blue or green

* The possible colors are: Red, Blue, Green, Yellow, Magenta, and White.

Table A

Order	ㅃ	ㄲ	ㄴ	ㄷ	ㄸ	ㄹ	ㅁ	ㅂ	ㄱ	ㅅ	ㅆ	ㅇ	ㅈ	ㅉ	ㅟ	ㅋ	ㅌ	ㅍ	ㅢ
Special rule	Switch the first press with the last and the second with the third.

Table B

Order	ㅇ	ㅈ	ㅉ	ㅟ	ㅋ	ㅌ	ㅍ	ㅢ	ㄱ	ㄹ	ㅁ	ㅂ	ㅃ	ㅅ	ㅆ	ㄲ	ㄴ	ㄷ	ㄸ
Special rule	If it’s stage 2 or 3 then switch the first press with the fourth press.

Table C

Order	ㄹ	ㅁ	ㅂ	ㄱ	ㄲ	ㄷ	ㅈ	ㅉ	ㅟ	ㅋ	ㅌ	ㅍ	ㅃ	ㅅ	ㅆ	ㅇ	ㅢ	ㄴ	ㄸ
Special rule	If there is a ps/2 port on the bomb and any lit indicator then reverse the order. Otherwise switch the first press with the second.

Table D

Order	ㄱ	ㅢ	ㄲ	ㅍ	ㄴ	ㅌ	ㄷ	ㅋ	ㄸ	ㅟ	ㄹ	ㅉ	ㅁ	ㅈ	ㅂ	ㅇ	ㅃ	ㅆ	ㅅ
Special rule	If this or any of the previous stages contained a ㅟ letter then reverse the order.

Table E

Order	ㄷ	ㄸ	ㄹ	ㅁ	ㅂ	ㅃ	ㅢ	ㅟ	ㅋ	ㄱ	ㄲ	ㄴ	ㅅ	ㅆ	ㅈ	ㅍ	ㅉ	ㅇ	ㅌ
Special rule	If the strip in any of the previous stages were yellow or blue then input in the reverse order.

Table F

Order	ㅋ	ㄸ	ㄷ	ㅅ	ㅍ	ㅌ	ㅁ	ㄴ	ㅃ	ㅉ	ㄲ	ㅆ	ㅢ	ㅈ	ㅟ	ㅂ	ㄹ	ㄱ	ㅇ
Special rule	If the serial number contains a letter or number in common with any of the ports on the bomb then swap the third press with the fourth. Otherwise swap the first and the second.