Here is a very interesting crack-the-code puzzle to test your logical reasoning. In this logical reasoning puzzle, your challenge is to decipher the 3-digit code which will help you to open the lock. Hints to find this 3-digit code are given in the puzzle image. Study these hints carefully to decode the hidden codeCan you crack the code with your logic and open the lock?

 Can you crack the code and open the lock?

Unknown said...

I almost got it, but why isn't the second number not ONE??? Also, could you please post an explanation to this, Thanks!!

Rajesh Kumar said...

If second number is 1 then the fourth statement in the puzzle will not be correct.

Unknown said...

Because in the 4th statement it was told that one number is correct and is wrongly placed.

Harsh Kumar Jha said...

042

Unknown said...

can someone explain how you get the answer?

BillBurns said...

1: 682 one digit is right and in the right place
2: 738 all digits are wrong
3: 206 two digits are right but both are in the wrong place
4: 614 one digit is right but is in the wrong place
5: 780 one digit is right but in the wrong place

Start with statement 2, eliminate 7, 3 and 8 as correct digits.
This leaves statement 5 with only the 0 (but in the wrong place)
Statement 3 tells us that 206 has 2 digits, but they're both in the wrong place.
So now... we know that 0 is correct, but it can't be in the middle spot (since 206 is wrong)
nor can it be in the last spot (since 780 is wrong). The first number MUST be 0
Statement 1 now tells us that (682 has 1 digit right and in the right place.
It can't be the 6 (since the first number is 0), it can't be the 8 (since 738 are all wrong)
So the last number MUST be 2.
Statement 4 tells us that one digit is right but in the wrong place. We know 6 is wrong;
since statement 1 has only has 1 right number and it's the 2. So this leaves the 1 and the 4.
But it CAN'T be the 1 because then the 1 would be right AND in the right place. So we know
the only correct number is in the wrong spot. 4 is correct but belongs in the middle possition

042

Rame\$h said...

052

Unknown said...

602

Unknown said...

042

Unknown said...

062

Unknown said...

062

Unknown said...

before getting on to the last row, it was 042

Unknown said...

Oops, I must correct it, I did use the last clue as well to find 042

Unknown said...

noice

Unknown said...

I think it is 042

Rajesh Kumar said...

Thanks Bill for the detailed explanation to this crack the code puzzle.

Shawn said...

The wording of each clue is actually wrong and can lead to an interpretation that leads to many possible answers. "One Number" does not imply exclusivity, and could therefore mean that there is another number as well that matches the same criteria. The only way for there to be only a single answer is that each clue gives an exact specificity such as "Exactly One Number" or "One and Only One Number"

Rajesh Kumar said...

This is very correct observation. However limitation of space forced me to use less words. I have created so many Crack the Code Puzzles with similar wording. Till now most of the people could understand these puzzles. I will change the wordings in my future code cracking puzzles in case more people find it confusing.
Thanks for pointing it out. Keep solving and keep writing. Comments helps me to improve my websites.

Dave said...

Hi Rajesh ! I really like this puzzle ! Can i use it in my upcoming survival horror game ? Of course your name will be listed in the puzzle creator list !
Regards !

Rajesh Kumar said...

Yes, you can use it. If possible write down the link of this website.

Unknown said...

Thank you BILLBURNS. You're great!

Landon said...

2 possible answers, 042, or 012. If you’re gonna make a puzzle please narrow it to 1 answer

Rajesh Kumar said...

For the 012 the 4th statement will be incorrect as one number (1) in this case is not wrongly placed.