$ED \quad \ \ \ EN \quad \ \ UE$

$451\ \ \ \quad 662\ \ \quad8w3$




There's only one possible value apiece for $w, x, y$ and $z$, tell why and what are they.

Hint 1

Give dear maths some holidays

Hint 2

All of you have already seen it

Hint 3

There are useless digits

Hint 4 - 20th of July '19

Extending hint 3, there are exactly twelve useless digits on this puzzle

  • 1
    $\begingroup$ I'm not sure about my English right now (I'm French and an English learner) does my formulation means that there are 4 digits, possibly different but unique for $w, x, y, z$ or does it mean there is 1 digit that fits for both $w, x, y, z$? The latter is clearly not what I want to express. $\endgroup$
    – JKHA
    Jul 11, 2019 at 20:48
  • 2
    $\begingroup$ In light of your comment above, I've suggested an edit to clarify. $\endgroup$
    – msh210
    Jul 11, 2019 at 20:53
  • 1
    $\begingroup$ @msh210 Thank you for teaching me some vocabulary haha ;) $\endgroup$
    – JKHA
    Jul 11, 2019 at 20:55
  • $\begingroup$ Should we know what is the meaning of ED, EN, and UE or is it part of the puzzle? $\endgroup$
    – Moti
    Jul 12, 2019 at 6:58
  • 1
    $\begingroup$ @MeaCulpaNay I edited my question aiming to clarify, accordingly to your comment :) $\endgroup$
    – JKHA
    Jul 12, 2019 at 19:17

1 Answer 1


The "useless digits" of hints 3 and 4 are

the 1,2,3 on the end, which serve only as indices.

The columns are really labelled


The missing digits are

4, 6, 3, and 5 respectively.

The rows are

the colours of the text, green region, yellow region, and red region, respectively, of the PSE logo.

I confess I'm not sure I understand hint 1; perhaps it's

just indicating that despite all the numbers this isn't actually a mathematical question?

  • $\begingroup$ You are right about hint 1. I thought without knowing there are useless digits, it could have been easy to seek pointlessly for hours into mathematical formulas $\endgroup$
    – JKHA
    Jul 22, 2019 at 9:15

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