diff --git a/LeanEval/Combinatorics/PartitionAsymptotics.lean b/LeanEval/Combinatorics/PartitionAsymptotics.lean
new file mode 100644
index 0000000..858e7e9
--- /dev/null
+++ b/LeanEval/Combinatorics/PartitionAsymptotics.lean
@@ -0,0 +1,20 @@
+import EvalTools.Markers
+import Mathlib.Analysis.Asymptotics.Defs
+import Mathlib.Combinatorics.Enumerative.Partition.Basic
+import Mathlib.Analysis.Complex.Exponential
+import Mathlib.Analysis.SpecialFunctions.Trigonometric.Basic
+
+/-! # Asymptotic expression for the number of integer partitions
+
+Hardy and Ramanujan's asymptotic expression for the number of integer partitions.
+
+G. H. Hardy, S. Ramanujan. *Asymptotic formulae in combinatory analysis*, 1918.
+-/
+
+open Asymptotics Filter Fintype
+
+/-- Hardy and Ramanujan's asymptotic formula. -/
+@[eval_problem]
+theorem isEquivalent_card_partition :
+  (fun (n : ℕ) => (card n.Partition : ℝ)) ~[atTop]
+  (fun n => Real.exp (Real.pi * Real.sqrt (2 * n / 3)) / (4 * n * Real.sqrt 3)) := sorry
diff --git a/manifests/problems.toml b/manifests/problems.toml
index b9e42d1..1a82bc7 100644
--- a/manifests/problems.toml
+++ b/manifests/problems.toml
@@ -646,6 +646,16 @@ holes = ["neukirch_uchida"]
 submitter = "Junyan Xu"
 source = "Jürgen Neukirch, Alexander Schmidt, Kay Wingberg. *Cohomology of Number Fields*, Theorem 12.2.1."
 
+[[problem]]
+id = "asymptotic_partition"
+title = "Hardy-Ramanujan asymptotic formula for the number of integer partitions"
+test = false
+module = "LeanEval.Combinatorics.PartitionAsymptotics"
+holes = ["isEquivalent_card_partition"]
+submitter = "Thomas K Waring"
+source = "G. H. Hardy, S. Ramanujan. *Asymptotic formulae in combinatory analysis*, 1918."
+informal_solution = "Evaluate the growth-rate of coefficients in the generating function by the so-called circle method."
+
 [[problem]]
 id = "balanceable_bounded_partitions"
 title = "Balanceable k-bounded partitions"