diff --git a/2020/src/day11.rs b/2020/src/day11.rs
new file mode 100644
index 0000000..c4c350d
--- /dev/null
+++ b/2020/src/day11.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day11;
+
+impl Solution for Day11 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day12.rs b/2020/src/day12.rs
new file mode 100644
index 0000000..414d389
--- /dev/null
+++ b/2020/src/day12.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day12;
+
+impl Solution for Day12 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day13.rs b/2020/src/day13.rs
new file mode 100644
index 0000000..b841970
--- /dev/null
+++ b/2020/src/day13.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day13;
+
+impl Solution for Day13 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day14.rs b/2020/src/day14.rs
new file mode 100644
index 0000000..839842b
--- /dev/null
+++ b/2020/src/day14.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day14;
+
+impl Solution for Day14 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day15.rs b/2020/src/day15.rs
new file mode 100644
index 0000000..fbbf738
--- /dev/null
+++ b/2020/src/day15.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day15;
+
+impl Solution for Day15 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day16.rs b/2020/src/day16.rs
new file mode 100644
index 0000000..41ae274
--- /dev/null
+++ b/2020/src/day16.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day16;
+
+impl Solution for Day16 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day17.rs b/2020/src/day17.rs
new file mode 100644
index 0000000..8919807
--- /dev/null
+++ b/2020/src/day17.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day17;
+
+impl Solution for Day17 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day18.rs b/2020/src/day18.rs
new file mode 100644
index 0000000..b7b5383
--- /dev/null
+++ b/2020/src/day18.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day18;
+
+impl Solution for Day18 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day19.rs b/2020/src/day19.rs
new file mode 100644
index 0000000..6d696ca
--- /dev/null
+++ b/2020/src/day19.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day19;
+
+impl Solution for Day19 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day20.rs b/2020/src/day20.rs
new file mode 100644
index 0000000..666ee81
--- /dev/null
+++ b/2020/src/day20.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day20;
+
+impl Solution for Day20 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day21.rs b/2020/src/day21.rs
new file mode 100644
index 0000000..db0edec
--- /dev/null
+++ b/2020/src/day21.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day21;
+
+impl Solution for Day21 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day22.rs b/2020/src/day22.rs
new file mode 100644
index 0000000..f51a2b2
--- /dev/null
+++ b/2020/src/day22.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day22;
+
+impl Solution for Day22 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day23.rs b/2020/src/day23.rs
new file mode 100644
index 0000000..2b2893e
--- /dev/null
+++ b/2020/src/day23.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day23;
+
+impl Solution for Day23 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day24.rs b/2020/src/day24.rs
new file mode 100644
index 0000000..0c4b22d
--- /dev/null
+++ b/2020/src/day24.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day24;
+
+impl Solution for Day24 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/day25.rs b/2020/src/day25.rs
new file mode 100644
index 0000000..2590562
--- /dev/null
+++ b/2020/src/day25.rs
@@ -0,0 +1,12 @@
+use std::io::Read;
+
+use crate::Solution;
+
+#[derive(Default)]
+pub struct Day25;
+
+impl Solution for Day25 {
+    fn part1(&mut self, _input: &mut dyn Read) -> String {
+        todo!()
+    }
+}
diff --git a/2020/src/lib.rs b/2020/src/lib.rs
index 0ce4b52..245db7f 100644
--- a/2020/src/lib.rs
+++ b/2020/src/lib.rs
@@ -11,6 +11,21 @@ mod day07;
 mod day08;
 mod day09;
 mod day10;
+mod day11;
+mod day12;
+mod day13;
+mod day14;
+mod day15;
+mod day16;
+mod day17;
+mod day18;
+mod day19;
+mod day20;
+mod day21;
+mod day22;
+mod day23;
+mod day24;
+mod day25;
 
 pub trait Solution {
     fn part1(&mut self, input: &mut dyn Read) -> String;
@@ -32,6 +47,21 @@ pub fn get_implementation(day: usize) -> Box<dyn Solution> {
         8 => Box::new(day08::Day08::default()),
         9 => Box::new(day09::Day09::default()),
         10 => Box::new(day10::Day10::default()),
+        11 => Box::new(day11::Day11::default()),
+        12 => Box::new(day12::Day12::default()),
+        13 => Box::new(day13::Day13::default()),
+        14 => Box::new(day14::Day14::default()),
+        15 => Box::new(day15::Day15::default()),
+        16 => Box::new(day16::Day16::default()),
+        17 => Box::new(day17::Day17::default()),
+        18 => Box::new(day18::Day18::default()),
+        19 => Box::new(day19::Day19::default()),
+        20 => Box::new(day20::Day20::default()),
+        21 => Box::new(day21::Day21::default()),
+        22 => Box::new(day22::Day22::default()),
+        23 => Box::new(day23::Day23::default()),
+        24 => Box::new(day24::Day24::default()),
+        25 => Box::new(day25::Day25::default()),
         _ => panic!("Unsupported day {}", day),
     }
 }