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The secret code is: Explanation: At first glance, my gut instinct (soon to be proved wrong) told me this must be impossible! After all: However, then I realised I had completely overlooked the possibility that: Which colour could this be? Well, we know from guess#3 and guess#4 that we have to have: So: It now follows that the other three must be ordered ...


15

I think the correct password is Reasoning


12

[5, 0, 1]: 2 [1, 3, 5]: 1 [4, 8, 3]: none. [1, 6, 7]: 1 [4, 3, 0]:


10

• PESTLE 2r0w • VIOLIN 0r0w • PUZZLE 1r1w • CAMERA 0r2w • HELIUM 1r1w • OXYGEN 0r1w • BANANA 0r0w How about:


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4

The answer is I don't know what to explain...


4

The Abyss Creature Chief said: First I determined what the party consists of Now that the party is determined the only way I could see how to approach this is try to assert one position as correct and see if it works out.


4

I've found the answers too complicate, so I share mine. Only three rules are needed: 501 — Two correct numbers in wrong places 135 — One correct number in the right place 167 — One correct number in wrong place


4

The following are my musings to find the answer: Starting with 430 (Rule 5): Starting with 501 (Rule 1): Starting with 167 (Rule 4): Combining the two new rules, 7 and 8 gives:


3

Answer Should be because


2

Similar to Florian F's answer, but with a better chance to solve quicker.


2

I will share my process: Notes of format !5 | !0 | !1 means that the first position can't be 5, second can't be 0, etc. Possible is short for values which are possible and also have been previously discussed Impossible represents values which have been ruled out Definite represents values which have been confirmed to exist, though makes no statement on ...


2

Only the first four rules are necessary to find the answer.


1

The required password is


1

Rule 1) 501 — Two correct numbers in wrong places Rule 2) 135 — One correct number in the right place Rule 3) 483 — All numbers are wrong Rule 4) 167 — One correct number in wrong place Rule 5) 430 — One correct number in the wrong place Starting from the most elimination Rule 3 Finding the 2nd digit The remaining digit Conclusion:


1

1) 501 2) 1X5 — 3 gets eliminated by the next clue 3) XXX — All eliminated 4) X67 — 1 gets eliminated for being in the "wrong" place here but the "right place" on Clue 2 5) XX0 — 4 and 3 gets eliminated by clue 3, leaving 0 2) XX5 — The 0 took the 1's place, so only 5 is left 4) XX7 — 1 gets eliminated by clues 1 and 2, and 6 would be in the "right" place ...


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