diff --git a/veetcode/app.py b/veetcode/app.py
index cf821e1..07b5c64 100644
--- a/veetcode/app.py
+++ b/veetcode/app.py
@@ -256,7 +256,7 @@ class ProblemListScreen(Screen):
             return
 
         for p in self.problems:
-            diff_char = {"easy": "E", "medium": "M", "hard": "H"}.get(p.difficulty, "?")
+            diff_char = {"easy": "Easy", "medium": "Medium", "hard": "Hard"}.get(p.difficulty, "?")
             check = "✓ " if p.name in self.solved else "  "
             ol.add_option(Option(f"{check}[{diff_char}] {p.name}", id=p.name))
 
diff --git a/veetcode/cli.py b/veetcode/cli.py
index 4190d84..1360f61 100644
--- a/veetcode/cli.py
+++ b/veetcode/cli.py
@@ -52,7 +52,7 @@ def list() -> None:
     
     for p in problems:
         mark = "✓" if p.name in solved else " "
-        diff = {"easy": "E", "medium": "M", "hard": "H"}.get(p.difficulty, "?")
+        diff = {"easy": "Easy", "medium": "Medium", "hard": "Hard"}.get(p.difficulty, "?")
         typer.echo(f"{mark} [{diff}] {p.name}")
 
 
@@ -122,7 +122,7 @@ def open(
     if not name:
         typer.echo("Available problems:\n")
         for i, p in enumerate(problems, 1):
-            diff = {"easy": "E", "medium": "M", "hard": "H"}.get(p.difficulty, "?")
+            diff = {"easy": "Easy", "medium": "Medium", "hard": "Hard"}.get(p.difficulty, "?")
             typer.echo(f"  {i}. [{diff}] {p.name}")
         typer.echo()
         choice = typer.prompt("Enter number or name")