diff --git a/src/bin/day6.rs b/src/bin/day6.rs
new file mode 100644
index 0000000..87468cd
--- /dev/null
+++ b/src/bin/day6.rs
@@ -0,0 +1,84 @@
+use aoc23::prelude::*;
+use derive_builder::Builder;
+use itertools::Itertools;
+use rayon::prelude::*;
+use std::{str::FromStr, time::Instant};
+
+static DAY: u8 = 6;
+
+#[derive(Debug, Builder, Clone)]
+struct Todo {}
+
+impl FromStr for Todo {
+    type Err = BoxE;
+
+    fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
+        let mut builder = TodoBuilder::default();
+        Ok(builder.build()?)
+    }
+}
+
+fn part1(input: String) -> Result<usize> {
+    // parse
+    let start = Instant::now();
+    let todo: Todo = input.parse()?;
+    let parsed_time = start.elapsed();
+
+    // algo
+    let start = Instant::now();
+    let answer = 0;
+    let algo_time = start.elapsed();
+
+    // output
+    println!("part 1: {answer}");
+    println!("\tparse: {parsed_time:?}");
+    println!("\talgo: {algo_time:?}");
+    Ok(answer)
+}
+
+fn part2(input: String) -> Result<usize> {
+    // parse
+    let start = Instant::now();
+    let todo: Todo = input.parse()?;
+    let parsed_time = start.elapsed();
+
+    // algo
+    let start = Instant::now();
+    let answer = 0;
+    let algo_time = start.elapsed();
+
+    // output
+    println!("part 2: {answer}");
+    println!("\tparse: {parsed_time:?}");
+    println!("\talgo: {algo_time:?}");
+    Ok(answer)
+}
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    let input = utils::aoc::get_puzzle_input(DAY).await?;
+    println!("Day {DAY}");
+    println!("=====");
+    part1(input.clone())?;
+    part2(input.clone())?;
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    static DATA: &'static str = "TODO_REPLACE";
+
+    #[test]
+    fn test_part_1() -> Result<()> {
+        assert_eq!(part1(DATA.to_owned())?, 0);
+        Ok(())
+    }
+
+    #[test]
+    fn test_part_2() -> Result<()> {
+        assert_eq!(part2(DATA.to_owned())?, 0);
+        Ok(())
+    }
+}