# Writing in the Dust

As you continue down the corridor, you come across a door and panel, clearly left untouched for many years. Hoping to get lucky, you try the door but it is locked. On the panel is a line of 6 buttons, colored RED, ORANGE, YELLOW, GREEN, BLUE, and PURPLE. As you search, you notice writing in the dust. You can faintly make out what appears to be:

IPF S: GPIFV
PIU
PFD
CR N
PL F
PUPI


How do you proceed?

• Are we certain that this is pertinent to the "cipher" tag? Regardless, a nice little puzzle. – can-ned_food Feb 23 '17 at 10:30
• @can-ned_food I see what you mean. If you know of a better tag, I'll switch it. – Spencer Fleming Feb 23 '17 at 15:05

Making this community wiki so maybe someone else can take it from here:

The dust appears to contain the color names except for YELLOW, it contains BLUE twice, and I'm not sure what the word preceding the colon is. "PRESS" perhaps?

CreatedByBrett got the final bit:

Beastly Gerbil's answer covered everything except the meaning of the characters on the left. I think I got that and can answer the question.

The characters in the dust are instructions to follow. Some parts of the letters have been smudged out. Filling them in, we get: https://i.stack.imgur.com/QvCRH.png

• Wasn't my answer – Beastly Gerbil Feb 22 '17 at 20:48
• Oh, I hadn't seen "community wiki" before, and I saw your name, so I figured it was yours. Looks like it was ... Tilper! – BrettFromLA Feb 22 '17 at 21:13
• @BrettFromLA, indeed, 'twas I! Stack Exchange could definitely slightly improve the author indication for community wikis, but oh well. – user33097 Feb 23 '17 at 0:36
• @BeastlyGerbil, thanks, was struggling to get that image to stay hidden then had to give up because break time was over. Sigh. – user33097 Feb 23 '17 at 0:37
• @tilper Limited break times, the bane of creativity. – BrettFromLA Feb 23 '17 at 17:58