diff --git a/progress.png b/progress.png
index 4f5dc07..4cdeef7 100644
Binary files a/progress.png and b/progress.png differ
diff --git a/progress.yaml b/progress.yaml
index 3caf049..fceb3db 100644
--- a/progress.yaml
+++ b/progress.yaml
@@ -9,4 +9,6 @@
 5:
   stars: 2
 6:
+  stars: 1
+7:
   stars: 1
\ No newline at end of file
diff --git a/res/examples/day7.txt b/res/examples/day7.txt
new file mode 100644
index 0000000..87b8b25
--- /dev/null
+++ b/res/examples/day7.txt
@@ -0,0 +1,9 @@
+190: 10 19
+3267: 81 40 27
+83: 17 5
+156: 15 6
+7290: 6 8 6 15
+161011: 16 10 13
+192: 17 8 14
+21037: 9 7 18 13
+292: 11 6 16 20
\ No newline at end of file
diff --git a/src/day7/puzzle1.typ b/src/day7/puzzle1.typ
new file mode 100644
index 0000000..6e7898c
--- /dev/null
+++ b/src/day7/puzzle1.typ
@@ -0,0 +1,42 @@
+#import "/src/utils.typ": *
+
+#let solveable(values, target) = {
+  if values.len() == 1 {
+    return values.last() == target
+  }
+
+  let values = values
+  let v = values.pop()
+  if calc.rem(target, v) == 0 {
+    if solveable(values, target / v) {
+      return true
+    }
+  }
+  if v > target {
+    return false
+  }
+
+  return solveable(values, target - v)
+}
+
+#let solve(input) = {
+  let equations = input.split("\n")
+
+  let total = 0
+  for equation in equations {
+    let (target, values) = equation.split(": ")
+    target = int(target)
+    values = values.split(" ").map(int)
+
+    if solveable(values, target) {
+      total += target
+    }
+  }
+  return total
+}
+
+#show-puzzle(
+  7, 1,
+  solve,
+  example: 3749
+)
\ No newline at end of file
diff --git a/src/day7/puzzle2.typ b/src/day7/puzzle2.typ
new file mode 100644
index 0000000..e69de29
diff --git a/src/main.pdf b/src/main.pdf
index 901d7ef..6484c5e 100644
Binary files a/src/main.pdf and b/src/main.pdf differ