diff --git a/2025/8/ex_input b/2025/8/ex_input
new file mode 100644
index 0000000..e98a3b6
--- /dev/null
+++ b/2025/8/ex_input
@@ -0,0 +1,20 @@
+162,817,812
+57,618,57
+906,360,560
+592,479,940
+352,342,300
+466,668,158
+542,29,236
+431,825,988
+739,650,466
+52,470,668
+216,146,977
+819,987,18
+117,168,530
+805,96,715
+346,949,466
+970,615,88
+941,993,340
+862,61,35
+984,92,344
+425,690,689
diff --git a/2025/8/odin/main.odin b/2025/8/odin/main.odin
new file mode 100644
index 0000000..c92645d
--- /dev/null
+++ b/2025/8/odin/main.odin
@@ -0,0 +1,40 @@
+package day_8
+
+import "core:fmt"
+import "core:strconv"
+import "core:strings"
+
+input :: cast(string)#load("../ex_input")
+
+Pos :: [3]int
+
+parse :: proc(input: string) -> (res: []Pos, ok: bool) {
+	data: [dynamic]Pos
+	for line in strings.split_lines(strings.trim_space(input)) {
+		raw_pos := strings.split(line, ",")
+		pos: Pos
+		for &v, i in pos {
+			v = strconv.parse_int(raw_pos[i]) or_return
+		}
+		append(&data, pos)
+	}
+	return data[:], true
+}
+
+solve_1 :: proc(data: []Pos) -> int {
+	edges: map[Pos]Pos
+	for p1 in data {
+		for p2 in data {
+			if p1 == p2 do continue
+			if p1 not_in edges do edges[p1] = p2
+		}
+	}
+	fmt.println(edges)
+	return 0
+}
+
+main :: proc() {
+	data, ok := parse(input)
+	if !ok do fmt.eprintln("failed to parse")
+	fmt.println(solve_1(data))
+}
diff --git a/2025/8/debug_build b/2025/8/odin/old/debug_build
similarity index 100%
rename from 2025/8/debug_build
rename to 2025/8/odin/old/debug_build
diff --git a/2025/8/example b/2025/8/odin/old/example
similarity index 100%
rename from 2025/8/example
rename to 2025/8/odin/old/example
diff --git a/2025/8/main.odin b/2025/8/odin/old/main.odin
similarity index 100%
rename from 2025/8/main.odin
rename to 2025/8/odin/old/main.odin