Advent of Code 2020, Day 2, Part 1
Ruby, 56 characters
eval'㵰␼⹣潵湴筼汼氽縯層⬠⠮⤯㬨①⹴潟椮⸤☮瑯彩⤽㴽␧⹣潵湴⠤ㄩ紻'.encode('utf-16').b

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Decompresses to:
p$&lt;.count{|l|l=~/\d+ (.)/;($`.to_i..$&amp;.to_i)===$'.count($1)}

Character scoring allows these sort of shenanigans!
This is also a great showcase of Ruby's regex global variables. Given a line:
3-8 j: ksjjtvnjbjppjjjl

Our regex matches here:
3-8 j: ksjjtvnjbjppjjjl
  \-/
  Regex matches here

Then $' is the part after the regex, $&amp; is the part that matches the regex, $` is the part before the regex, and $1 matches the character to count, so we have:
$` = '3-'
$&amp; = '8 j'
$1 = 'j'
$' = ': ksjjtvnjbjppjjjl'

Since Ruby's to_i just ignores garbage after a numeric string, we can just cast it to int.
Ruby -n, 60 characters
~/\d+ (.)/;($`.to_i..$&amp;.to_i)===$'.count($1)||$.-=1
END{p$.}

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