diff --git a/challenges/2024/06-guardGallivant/main.py b/challenges/2024/06-guardGallivant/main.py
index 72c3967..12b030a 100644
--- a/challenges/2024/06-guardGallivant/main.py
+++ b/challenges/2024/06-guardGallivant/main.py
@@ -13,28 +13,35 @@ def find_start(g: grid.Grid) -> coord.Coordinate:
         if g[pos] == "^":
             return pos
     assert False, "no start point found"
-    
-    
+
+
 def modplus(x: int) -> int:
     return (x + 1) % 4
 
-    
-dirs = [coord.Direction.Up, coord.Direction.Right, coord.Direction.Down, coord.Direction.Left]
+
+dirs = [
+    coord.Direction.Up,
+    coord.Direction.Right,
+    coord.Direction.Down,
+    coord.Direction.Left,
+]
 
 
 class LoopEncounteredException(Exception):
     pass
 
 
-def trace(g: grid.Grid, guard_pos: coord.Coordinate, guard_direction: int) -> set[tuple[coord.Coordinate, int]]:
+def trace(
+    g: grid.Grid, guard_pos: coord.Coordinate, guard_direction: int
+) -> set[tuple[coord.Coordinate, int]]:
     visited_sequence = set()
-    
+
     while guard_pos in g:
         if (guard_pos, guard_direction) in visited_sequence:
             raise LoopEncounteredException
-        
+
         visited_sequence.add((guard_pos, guard_direction))
-        
+
         nc = coord.add(guard_pos, dirs[guard_direction % 4].delta())
         if nc in g and g[nc] == "#":
             guard_direction = modplus(guard_direction)
@@ -51,11 +58,11 @@ def one(instr: str) -> int:
 
 def two(instr: str) -> int:
     g = parse(instr)
-    
+
     start_pos = find_start(g)
     seq = trace(g, start_pos, 0)
     known_blocks = set()
-    
+
     for (pos, _) in tqdm(seq, file=sys.stderr):
         assert pos in g, "pos off the rails"
         g[pos] = "#"
@@ -64,7 +71,7 @@ def two(instr: str) -> int:
         except LoopEncounteredException:
             known_blocks.add(pos)
         g[pos] = "."
-    
+
     return len(known_blocks)
 
 
@@ -81,4 +88,4 @@ if __name__ == "__main__":
     if sys.argv[1] == "1":
         print(one(inp))
     else:
-        print(two(inp))
\ No newline at end of file
+        print(two(inp))
diff --git a/challenges/2024/06-guardGallivant/sample.txt b/challenges/2024/06-guardGallivant/sample.txt
deleted file mode 100644
index a4eb402..0000000
--- a/challenges/2024/06-guardGallivant/sample.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-....#.....
-.........#
-..........
-..#.......
-.......#..
-..........
-.#..^.....
-........#.
-#.........
-......#...