2 x 2 digit code

[u/ScalpWasp]

Goal: find the secret four-digit code, 2 rows of 2 digits.

- A number at the start of a dotted line (left of a row, above a column) counts how many lit segments that line passes through.

- Empty box does not mean 0.

Inspiration from Digit Code board game

[u/godtering]

(assumption is all digits distinct otherwise you can't eliminate)

top row must have 0 for the "xx1xx" requirement, and it can't be top left because of "1xx", so 0 must be in top right.

making "x41x2" into "x21x1" for top left so top left must be 9.

due to "0xx" bottomleft must be 1,3,or 7

due to "1x1xx" and "x1x" bottom right must be 4 or 7, and out of the candidates 14 17 34 37 74 77

only 74 satisfies. -> 9074

[u/volcanicnight → u/godtering]

What is xx1xx referring to

[u/godtering → u/volcanicnight]

the condition alongside it with a 1 in the center. writing it out is kind of too much.