First try to the Advent of Code.
Language used: Ruby
# of solved puzzles: 9 - 1
Unsolved puzzles: 7,
Language used: Ruby
New Constraint: Only 30 minutes allowed per day (because I have way too much on my plate), next year better.
# of solved puzzles: 7.5
Unsolved puzzles: 8.2 (Testinput works, ???),9,
Language used: Python
New Constraint: No constraints this time
Solved puzzles: 1,2,3.1,4
Unsolved puzzles: 3.2