diff --git a/AoC_2025/src/days/day03.rs b/AoC_2025/src/days/day03.rs
deleted file mode 100644
index 5bdce68..0000000
--- a/AoC_2025/src/days/day03.rs
+++ /dev/null
@@ -1,53 +0,0 @@
-use crate::days::Solution;
-
-pub struct Day03;
-
-impl Solution for Day03 {
-    type Input = Vec<Vec<u32>>;
-
-    fn parse(&self, data: &str) -> Self::Input {
-        data.split("\n")
-            .filter(|s| !s.is_empty())
-            .map(|s| s.chars().map(|c| c.to_digit(10).unwrap_or(0)).collect())
-            .collect()
-    }
-
-    fn part1(&self, input: &Self::Input) -> usize {
-        input
-            .iter()
-            .map(|l| {
-                let (i1, m1) = max(&l[..l.len() - 1]);
-                let (_, m2) = max(&l[i1 + 1..]);
-                10 * m1 + m2
-            })
-            .sum::<u32>() as usize
-    }
-
-    fn part2(&self, input: &Self::Input) -> usize {
-        println!("Part2");
-        input
-            .iter()
-            .map(|l| {
-                (0..12)
-                    .rfold((0, 0), |(start_index, joltage), n| {
-                        let (i, m) = max(&l[start_index..l.len() - n]);
-                        (
-                            start_index + i + 1,
-                            usize::pow(10, n as u32) * m as usize + joltage,
-                        )
-                    })
-                    .1
-            })
-            .sum()
-    }
-}
-
-fn max(l: &[u32]) -> (usize, u32) {
-    let x = l.iter().enumerate().fold(
-        (0, 0),
-        |(index_m, m), (i, &x)| if x > m { (i, x) } else { (index_m, m) },
-    );
-
-    println!("Max of {:?} is {:?}", l, x);
-    x
-}
diff --git a/AoC_2025/src/days/day04.rs b/AoC_2025/src/days/day04.rs
deleted file mode 100644
index 9d60026..0000000
--- a/AoC_2025/src/days/day04.rs
+++ /dev/null
@@ -1,66 +0,0 @@
-use crate::days::Solution;
-use std::cmp::{max, min};
-
-pub struct Day04;
-
-impl Solution for Day04 {
-    type Input = Vec<Vec<bool>>;
-
-    fn parse(&self, data: &str) -> Self::Input {
-        data.split("\n")
-            .filter(|s| !s.is_empty())
-            .map(|s| s.chars().map(|c| c == '@').collect())
-            .collect()
-    }
-
-    fn part1(&self, input: &Self::Input) -> usize {
-        input
-            .iter()
-            .enumerate()
-            .map(|(x, l)| {
-                l.iter()
-                    .enumerate()
-                    .filter(move |(y, v)| {
-                        **v && neighbors((x, *y), input.len())
-                            .iter()
-                            .filter(|(nx, ny)| input[*nx][*ny])
-                            .count()
-                            < 4
-                    })
-                    .count()
-            })
-            .sum()
-    }
-
-    fn part2(&self, input: &Self::Input) -> usize {
-        0
-    }
-}
-
-fn coord_in_range((x, y): (i32, i32), size: usize) -> (usize, usize) {
-    (
-        min(max(x, 0) as usize, size - 1),
-        min(max(y, 0) as usize, size - 1),
-    )
-}
-
-fn neighbors((x, y): (usize, usize), size: usize) -> Vec<(usize, usize)> {
-    (0..=2)
-        .map(|i| i as i32 - 1)
-        .flat_map(|dx| {
-            (0..=2)
-                .map(|i| i as i32 - 1)
-                .filter_map(|dy| {
-                    if dx != 0 || dy != 0 {
-                        Some(coord_in_range((x as i32 + dx, y as i32 + dy), size))
-                    } else {
-                        None
-                    }
-                })
-                .filter(|n| *n != (x, y))
-                .collect::<Vec<(usize, usize)>>()
-        })
-        .collect::<std::collections::HashSet<(usize, usize)>>()
-        .into_iter()
-        .collect::<Vec<(usize, usize)>>()
-}
diff --git a/AoC_2025/src/days/mod.rs b/AoC_2025/src/days/mod.rs
index 0d5fd87..d16c304 100644
--- a/AoC_2025/src/days/mod.rs
+++ b/AoC_2025/src/days/mod.rs
@@ -1,7 +1,5 @@
 pub mod day01;
 pub mod day02;
-pub mod day03;
-pub mod day04;
 
 pub trait Solution {
     type Input;
diff --git a/AoC_2025/src/main.rs b/AoC_2025/src/main.rs
index 3c957b5..f8c8e10 100644
--- a/AoC_2025/src/main.rs
+++ b/AoC_2025/src/main.rs
@@ -35,8 +35,6 @@ fn main() {
     match cli.day {
         1 => run(cli.day, days::day01::Day01),
         2 => run(cli.day, days::day02::Day02),
-        3 => run(cli.day, days::day03::Day03),
-        4 => run(cli.day, days::day04::Day04),
         _ => {
             eprintln!("Day {:02} is not implemented yet!", cli.day);
             process::exit(1);