diff --git a/2024/day17/day17.bqn b/2024/day17/day17.bqn
new file mode 100644
index 0000000..1404b53
--- /dev/null
+++ b/2024/day17/day17.bqn
@@ -0,0 +1,18 @@
+in←•FLines"input"
+a‿b‿c←•ParseFloat¨12⊸↓¨3↑in
+Split←((⊢-˜+`׬)∘=⊔⊢)
+p←•ParseFloat¨','Split 9↓¯1⊸⊑in
+Combo←{𝕩⊑(↕4)∾𝕨}
+Step←{
+0‿n𝕊r‿a‿b‿c‿o: ⟨r+2,⌊a÷ 2⋆ a‿b‿c Combo n,b,c,o⟩;
+1‿n𝕊r‿a‿b‿c‿o: ⟨r+2,a,⊑b 32•bit._xor ⟨n⟩,c,o⟩;
+2‿n𝕊r‿a‿b‿c‿o: ⟨r+2,a,8 | a‿b‿c Combo n,c,o⟩;
+3‿n𝕊r‿0‿b‿c‿o: ⟨r+2,a,b,c,o⟩;
+3‿n𝕊r‿a‿b‿c‿o: ⟨n,a,b,c,o⟩;
+4‿n𝕊r‿a‿b‿c‿o: ⟨r+2,a,⊑b 32•bit._xor ⟨c⟩,c,o⟩;
+5‿n𝕊r‿a‿b‿c‿o: ⟨r+2,a,b,c,o∾8| a‿b‿c Combo n⟩;
+6‿n𝕊r‿a‿b‿c‿o: ⟨r+2,a,⌊a÷ 2⋆ a‿b‿c Combo n,c,o⟩;
+7‿n𝕊r‿a‿b‿c‿o: ⟨r+2,a,b,⌊a÷ 2⋆ a‿b‿c Combo n,o⟩
+}
+Run←{p𝕊a‿b‿c: {(2↑(⊑𝕩)↓p)Step 𝕩}•_while_{(⊑𝕩)<≠p}0‿a‿b‿c‿⟨⟩}
+•Out 1↓∾(','∾•Fmt)¨¯1⊑p Run a‿b‿c
diff --git a/2024/day17/input b/2024/day17/input
new file mode 100644
index 0000000..050736b
--- /dev/null
+++ b/2024/day17/input
@@ -0,0 +1,5 @@
+Register A: 24847151
+Register B: 0
+Register C: 0
+
+Program: 2,4,1,5,7,5,1,6,0,3,4,0,5,5,3,0
diff --git a/2024/day17/test b/2024/day17/test
new file mode 100644
index 0000000..f09839b
--- /dev/null
+++ b/2024/day17/test
@@ -0,0 +1,5 @@
+Register A: 729
+Register B: 0
+Register C: 0
+
+Program: 0,1,5,4,3,0