diff --git a/src/complexagent.rs b/src/complexagent.rs
index da17e60..db63410 100644
--- a/src/complexagent.rs
+++ b/src/complexagent.rs
@@ -223,7 +223,7 @@ impl FutureMoves {
             stack.extend(self.arena[idx].children.iter().copied());
         }
 
-        let mut new_arena = Vec::with_capacity(retain.iter().filter(|x| **x).count());
+        let mut new_arena = Vec::with_capacity(self.arena.len());
         let mut index_map = vec![None; self.arena.len()];
 
         for (old_idx, keep) in retain.iter().enumerate().rev() {
@@ -249,7 +249,7 @@ pub struct ComplexAgent {
 
 impl ComplexAgent {
     pub fn new(color: Piece) -> Self {
-        const MAX_DEPTH: usize = 5;
+        const MAX_DEPTH: usize = 7;
         Self {
             color,
             future_moves: FutureMoves::new(color, MAX_DEPTH),
diff --git a/src/main.rs b/src/main.rs
index 5c9bb14..6506e54 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -11,8 +11,8 @@ mod piece;
 fn main() {
     let player1 = complexagent::ComplexAgent::new(Piece::Black);
     // let player2 = complexagent::ComplexAgent::new(Piece::White);
-    let player2 = agent::ManualAgent::new(Piece::White);
-    // let player2 = agent::RandomAgent::new(Piece::White);
+    // let player2 = agent::ManualAgent::new(Piece::White);
+    let player2 = agent::RandomAgent::new(Piece::White);
     let mut game = Game::new(Box::new(player1), Box::new(player2));
     game.game_loop();
 }