diff --git a/progress.png b/progress.png
index 233e9c1..b605cb2 100644
Binary files a/progress.png and b/progress.png differ
diff --git a/progress.yaml b/progress.yaml
index 49ee180..d7d18bc 100644
--- a/progress.yaml
+++ b/progress.yaml
@@ -17,4 +17,6 @@
 9:
   stars: 2
 10:
-  stars: 2
\ No newline at end of file
+  stars: 2
+11:
+  stars: 1
\ No newline at end of file
diff --git a/res/examples/day11.txt b/res/examples/day11.txt
new file mode 100644
index 0000000..528f9d5
--- /dev/null
+++ b/res/examples/day11.txt
@@ -0,0 +1 @@
+125 17
\ No newline at end of file
diff --git a/src/day11/puzzle1.typ b/src/day11/puzzle1.typ
new file mode 100644
index 0000000..24a9ba2
--- /dev/null
+++ b/src/day11/puzzle1.typ
@@ -0,0 +1,40 @@
+#import "/src/utils.typ": *
+
+#let process(rock) = {
+  if rock == 0 {
+    return (1,)
+  }
+  let rock-str = str(rock)
+  if calc.rem(rock-str.len(), 2) == 0 {
+    let hl = calc.div-euclid(rock-str.len(), 2)
+    return (
+      int(rock-str.slice(0, hl)),
+      int(rock-str.slice(hl))
+    )
+  }
+  return (rock * 2024,)
+}
+
+#let blink(rocks) = {
+  let new-rocks = ()
+
+  for rock in rocks {
+    new-rocks += process(rock)
+  }
+
+  return new-rocks
+}
+
+#let solve(input) = {
+  let rocks = input.split(" ").map(int)
+  for _ in range(25) {
+    rocks = blink(rocks)
+  }
+  return rocks.len()
+}
+
+#show-puzzle(
+  11, 1,
+  solve,
+  example: 55312
+)
\ No newline at end of file
diff --git a/src/day11/puzzle2.typ b/src/day11/puzzle2.typ
new file mode 100644
index 0000000..e69de29
diff --git a/src/main.pdf b/src/main.pdf
index 46198a1..3a29b5b 100644
Binary files a/src/main.pdf and b/src/main.pdf differ