diff --git a/css/custom.css b/css/custom.css
index 729cd711..9adc9901 100644
--- a/css/custom.css
+++ b/css/custom.css
@@ -25,6 +25,11 @@
     background-color: var(--quote-bg);
 }
 
+.box.assessment {
+	border-color: #3B9797;
+    background-color: var(--quote-bg);
+}
+
 .box.warning {
 	border-left-color: #e7c000;
 	background-color: rgba(255, 229, 100, .2);
diff --git a/preproc/src/admonitions.rs b/preproc/src/admonitions.rs
index 6c572ea7..7733895e 100644
--- a/preproc/src/admonitions.rs
+++ b/preproc/src/admonitions.rs
@@ -38,7 +38,7 @@ struct AdmonitionsGenerator<'a, Iter: Iterator<Item = Event<'a>>> {
 }
 
 impl<'a, Iter: Iterator<Item = Event<'a>>> AdmonitionsGenerator<'a, Iter> {
-    const KINDS: [&'static str; 3] = ["tip", "warning", "danger"];
+    const KINDS: [&'static str; 4] = ["tip","assessment", "warning", "danger"];
 
     fn new(iter: Iter) -> Self {
         Self {
diff --git a/src/part1/hello_world.md b/src/part1/hello_world.md
index 8f26fae2..53043a3b 100644
--- a/src/part1/hello_world.md
+++ b/src/part1/hello_world.md
@@ -65,3 +65,14 @@ You could also take a flash cart (I use the [EverDrive GB X5](https://krikzz.com
 ![Picture of the Hello World running on a physical DMG](../assets/img/hello_dmg.jpg)
 
 Well, now that we have something working, it's time to peel back the curtains...
+
+:::assessment Chapter Milestone
+
+1.1 Given the following compilation commands, could you find the issue?
+```console
+$ rgbasm -o hello-world.o hello-world.asm
+$ rgblink hello-world.o
+$ rgbfix -v 0xFF hello-world.gb
+```
+
+:::