diff --git a/src/main.rs b/src/main.rs
index bf61cab..f234d8b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,4 @@
 use png::{ColorType, Decoder};
-use rand::{thread_rng, Rng};
 use sscanf::sscanf;
 use std::error::Error;
 use std::fs::File;
@@ -14,8 +13,9 @@ fn main() -> Result<(), Box<dyn Error>> {
     let info = reader.next_frame(&mut pixelbuf)?;
 
     thread::scope(|s| {
-        for _ in 0..32 {
-            s.spawn(|| -> Result<(), Box<dyn Error + Send + Sync>> {
+        for i in 0..3 {
+            let pixelbuf = &pixelbuf;
+            s.spawn(move || -> Result<(), Box<dyn Error + Send + Sync>> {
                 let stream = TcpStream::connect("151.217.15.90:1337")?;
                 // disable Nagle's algorithm
                 stream.set_nodelay(true)?;
@@ -30,13 +30,9 @@ fn main() -> Result<(), Box<dyn Error>> {
                 let size = sscanf!(&buf[..buf.len() - 1], "SIZE {u32} {u32}").unwrap();
                 println!("SIZE {} {}", size.0, size.1);
 
-                let mut rng = thread_rng();
+                let pos = ((size.0 - info.width) / 2, (size.1 - info.height) / 2);
                 loop {
-                    let pos = (
-                        rng.gen_range(0..size.0 - info.width),
-                        rng.gen_range(0..size.1 - info.height),
-                    );
-                    for y in 0..info.height {
+                    for y in (i..info.height).step_by(3) {
                         for x in 0..info.width {
                             match info.color_type {
                                 ColorType::Rgba => {