# Tag Info

### Crack the lock code

You can see from clue 4 that there are no 7, 3, or 8. You can see from clue 5 that there is a 0 in either the first or second slot, and from clue 3 that it must be in the first slot. That means the ...
• 148k
Accepted

### Crack the lock code

The code is: Explanations: One number is correct and is also correctly placed: One number is correct but wrongly placed: Two numbers are correct and wrongly placed: Nothing is correct: One ...
• 18.9k

### Crack the lock code

My solution: Clues 1 & 2 say number 6 is not included as it cannot be in both the wrong and the right place at the same time Clue 3 then says 2 and 0 are included Clue 1 then says 2 must be in ...
• 521
Accepted

### A strange construction of locks

Securitywise One might ask ... and the answer might be Thus, for example,
• 6,959

### A strange construction of locks

As a technician for a telecommunications company I encountered this arrangement of locks at many tower sites, usually out in the boondocks. Each lock is assigned by the tower owner to a different ...
• 151

### A strange construction of locks

If you arrive to find an unlocked state, you can tell which key was used to unlock it, which may give useful info on who is inside. This might be especially useful if the space accommodates very few ...
• 1,041

• 35.6k

### Crack the lock code

From the first clue, From the fourth clue, Hence there must be Now by the third clue, the code must contain By the second clue, the code contains As it turns out,
• 1,053

• 2,401

### My school has a "crack the code" riddle

The puzzle is broken. You can find it at project-archive.net. Looking at the Javascript code, the solution changes every time the page is loaded, but the tips are the same.
• 61
Accepted

### Numbers hidden in fantasy story

Before reading this answer, please go and upvote the answer by M Oehm. He deserves most of the credit. After days of frustration and pulling off your hair, you find a strange pattern in the Coda. ...
• 176

### Numbers hidden in fantasy story

You briskly step up to the keypad and type: From previous adventurers' lives (er, answers) we know that ... Now, some observations:
• 63.7k

### Crack the lock code

I really enjoyed this Here is how I deduced this: I started off with clue #4 (nothing is correct). Knowing this, I moved onto clue #5 (one number is correct but wrong placed) We now look at clue #...

### Numbers hidden in fantasy story

First time trying to answer a puzzle on here, so this is probably way too basic, but I wanted to give it a shot. Answer: Reasoning:
• 51

### Numbers hidden in fantasy story

I'm not sure of the intended complexity of this puzzle, so I'll just go with an answer that is super topical. I'm positive someone else can solve it if I'm wrong. Anyway, the code is: 1st number: ...
• 366

• 1,590

### Crack the lock code

Really nice. Didn't know puzzling.se exists... So my solution is: Because: and and Again line 2 All together:
• 131

### Cryptic Chamber *1* (discontinued)

I think you would And after you do this
• 15.9k
Accepted

### Is there a system to brute force a combination padlock?

Because we want to choose 5 of 10 digits, there will be $${10 \choose 5} = \frac{10!}{5!5!} = 252$$ possibilities. Now the fun part is how do we do the bruteforce? To minimize the time taken, we can ...
• 34.3k

### How could a puzzle-based locking mechanism work?

Well, googling "slide puzzle lock" give me the following first hit, so it really isn't hard to find: http://www.instructables.com/id/Mysterious-Sliding-Tile-Secret-Compartment-Table/ This seems to ...
• 11.3k

### My school has a "crack the code" riddle

There's multiple contradictions in the puzzle as presented: Between them, 16374 and 50928 represent all ten digits. The first has one correct number, but in the wrong position. The second has two ...
• 5,015
Accepted

### What's that puzzle where multiple levers change the locks' states on one door?

You could perhaps describe a puzzle like this as a Lights Out style puzzle. The game Lights Out consists of a grid of illuminated input buttons, with the goal being to turn all the lights off. Each ...
• 4,878

### A strange construction of locks

Not seen one like this before but:
• 16.7k

### Crack the lock code

All of the answers so far assume that for some reason mastermind rules apply to this puzzle. The tag mastermind was added a couple of days ago. Of course you need to make some assumptions to solve ...
• 31

### Numbers hidden in fantasy story

I think the answer should be: This is based on number of persons active & contributed in conversaion of each paragraph. In the first paragraph, In the second paragraph, In the third paragraph,...
• 676

### Numbers hidden in fantasy story

I focused on the quote "He is more important to us now that he is gone." Each paragraph refers to something missing. I doubled the first number to use each digit, although maybe that was unnecessary. ...

### Cryptic Chamber *1* (discontinued)

I have no idea if something like this would work, but
• 9,924

### The Cryptic Lab ~3~

Well thirst comes first, so I initially consider expanding the glass with heat, but then I have a much safer idea: But how do you pick a lock with a bent skewer? While I wait, I enjoy some much ...
• 506

### Is this Lionel Penrose's interlocking puzzle?

The general term for this type of puzzle is a coordinate-motion puzzle. I don't know when the three-part disc version of the puzzle was first made. In the US patent US4397466A for the Cerebral Rings ...
• 54.6k
1 vote
Accepted

### The Cryptic Lab ~3~

Step 1: Step 2: Step 3: Step 4:
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Only top scored, non community-wiki answers of a minimum length are eligible