diff --git a/src/lib.rs b/src/lib.rs
index 843a046..13e123f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -13,6 +13,8 @@ pub enum Error {
     BadMove(Pos),
 }
 
+type Result<T> = std::result::Result<T, Error>;
+
 #[derive(PartialEq, Copy, Clone)]
 enum Direction {
     U,
@@ -129,7 +131,7 @@ impl std::fmt::Display for Level {
 }
 
 impl Level {
-    fn read<R: std::io::BufRead>(file: R) -> Result<Self, ReadError> {
+    fn read<R: std::io::BufRead>(file: R) -> std::result::Result<Self, ReadError> {
         let (mut player, mut size) = (Pos::default(), Pos::default());
 
         let map = file
@@ -155,13 +157,13 @@ impl Level {
                         '.' => Ok(Cell::None),
                         _ => Err(ReadError::BadSymbol),
                     })
-                    .collect::<Vec<Result<_, _>>>()
+                    .collect::<Vec<std::result::Result<_, _>>>()
             })
-            .collect::<Result<Vec<_>, _>>()?;
+            .collect::<std::result::Result<Vec<_>, _>>()?;
         Ok(Self { size, player, map })
     }
 
-    fn read_rle(map: String) -> Result<Self, ReadError> {
+    fn read_rle(map: String) -> std::result::Result<Self, ReadError> {
         let mut n: usize = 1;
 
         Self::read(
@@ -199,7 +201,7 @@ impl State {
         };
     }
 
-    fn move_pos(&mut self, pos: Pos) -> Result<(bool, bool), Error> {
+    fn move_pos(&mut self, pos: Pos) -> Result<(bool, bool)> {
         let dpos = self.lvl.player + pos;
 
         if ((dpos.1 * self.lvl.size.0) + dpos.0) as usize >= self.lvl.map.len() {
@@ -233,7 +235,7 @@ impl State {
         Ok((false, false))
     }
 
-    fn move_dir(&mut self, dir: Direction) -> Result<(bool, bool), Error> {
+    fn move_dir(&mut self, dir: Direction) -> Result<(bool, bool)> {
         match dir {
             Direction::U => self.move_pos(Pos(0, -1)),
             Direction::D => self.move_pos(Pos(0, 1)),
@@ -369,7 +371,7 @@ impl Agent {
         }
     }
 
-    fn move_dna(&mut self) -> Result<Solution, Error> {
+    fn move_dna(&mut self) -> Result<Solution> {
         if self.dir == self.dna.len() || self.goal == Solution::None {
             Ok(Solution::None)
         } else {
@@ -388,7 +390,7 @@ impl Agent {
         }
     }
 
-    fn evaluate(&mut self) -> Result<(), Error> {
+    fn evaluate(&mut self) -> Result<()> {
         loop {
             let player = self.state.lvl.player;
 
@@ -464,11 +466,11 @@ impl Population {
         }
     }
 
-    fn step(&mut self) -> Result<(), Error> {
+    fn step(&mut self) -> Result<()> {
         self.life
             .par_iter_mut()
             .map(|a| a.evaluate())
-            .collect::<Result<Vec<()>, _>>()?;
+            .collect::<Result<Vec<()>>>()?;
         self.life.par_sort_by(|a, b| b.score.total_cmp(&a.score));
 
         if self.life[0].goal != Solution::Win {
@@ -508,7 +510,7 @@ impl Population {
     }
 }
 
-pub fn run(config: Config, rle: Option<String>) -> Result<(), Error> {
+pub fn run(config: Config, rle: Option<String>) -> Result<()> {
     rayon::ThreadPoolBuilder::new()
         .num_threads(config.num_threads)
         .build_global()
@@ -538,7 +540,7 @@ pub fn run(config: Config, rle: Option<String>) -> Result<(), Error> {
     for _ in 0..config.gen_depth {
         let mut pop = Population::new(&config, map.clone());
 
-        if let Some(agent) = || -> Result<Option<Agent>, Error> {
+        if let Some(agent) = || -> Result<Option<Agent>> {
             while pop.gen < config.gen_max {
                 pop.step()?;