diff --git a/src/problem_1970_last_day_where_you_can_still_cross/mod.rs b/src/problem_1970_last_day_where_you_can_still_cross/mod.rs
index d33ec9f1..1e7a2b4e 100644
--- a/src/problem_1970_last_day_where_you_can_still_cross/mod.rs
+++ b/src/problem_1970_last_day_where_you_can_still_cross/mod.rs
@@ -8,6 +8,133 @@ pub trait Solution {
 mod tests {
     use super::Solution;
 
+    const EXTRA_TEST_CASE: ((i32, i32, &[[i32; 2]]), i32) = (
+        (
+            13,
+            9,
+            &[
+                [12, 6],
+                [3, 4],
+                [2, 9],
+                [9, 4],
+                [9, 2],
+                [6, 4],
+                [4, 4],
+                [8, 6],
+                [4, 9],
+                [5, 6],
+                [7, 5],
+                [12, 4],
+                [11, 8],
+                [3, 7],
+                [2, 6],
+                [9, 8],
+                [3, 5],
+                [13, 4],
+                [1, 3],
+                [10, 2],
+                [8, 9],
+                [6, 6],
+                [11, 7],
+                [11, 1],
+                [13, 9],
+                [12, 7],
+                [10, 7],
+                [8, 2],
+                [1, 8],
+                [7, 3],
+                [6, 5],
+                [2, 1],
+                [10, 6],
+                [4, 8],
+                [4, 2],
+                [9, 7],
+                [6, 2],
+                [3, 6],
+                [12, 2],
+                [10, 3],
+                [10, 5],
+                [9, 5],
+                [8, 8],
+                [8, 7],
+                [3, 2],
+                [13, 6],
+                [3, 1],
+                [5, 1],
+                [2, 7],
+                [8, 3],
+                [12, 5],
+                [11, 2],
+                [6, 3],
+                [1, 4],
+                [13, 3],
+                [4, 1],
+                [9, 9],
+                [7, 7],
+                [4, 3],
+                [12, 1],
+                [2, 2],
+                [7, 6],
+                [4, 6],
+                [7, 9],
+                [7, 2],
+                [3, 8],
+                [1, 6],
+                [11, 3],
+                [11, 4],
+                [5, 9],
+                [13, 8],
+                [1, 9],
+                [10, 1],
+                [9, 1],
+                [6, 1],
+                [10, 9],
+                [12, 9],
+                [11, 5],
+                [8, 1],
+                [13, 5],
+                [9, 6],
+                [13, 2],
+                [6, 8],
+                [2, 8],
+                [5, 3],
+                [3, 3],
+                [13, 1],
+                [11, 9],
+                [9, 3],
+                [2, 4],
+                [5, 2],
+                [8, 5],
+                [13, 7],
+                [12, 8],
+                [5, 5],
+                [7, 1],
+                [7, 4],
+                [2, 5],
+                [6, 9],
+                [4, 7],
+                [5, 8],
+                [1, 5],
+                [10, 8],
+                [8, 4],
+                [1, 1],
+                [3, 9],
+                [1, 2],
+                [7, 8],
+                [1, 7],
+                [6, 7],
+                [11, 6],
+                [4, 5],
+                [5, 7],
+                [2, 3],
+                [10, 4],
+                [5, 4],
+                [12, 3],
+            ],
+        ),
+        35,
+    );
+
     pub fn run<S: Solution>() {
         let test_cases = [
             ((2, 2, &[[1, 1], [2, 1], [1, 2], [2, 2]] as &[_]), 2),
@@ -20,132 +147,7 @@ mod tests {
                 ),
                 3,
             ),
-            (
-                (
-                    13,
-                    9,
-                    &[
-                        [12, 6],
-                        [3, 4],
-                        [2, 9],
-                        [9, 4],
-                        [9, 2],
-                        [6, 4],
-                        [4, 4],
-                        [8, 6],
-                        [4, 9],
-                        [5, 6],
-                        [7, 5],
-                        [12, 4],
-                        [11, 8],
-                        [3, 7],
-                        [2, 6],
-                        [9, 8],
-                        [3, 5],
-                        [13, 4],
-                        [1, 3],
-                        [10, 2],
-                        [8, 9],
-                        [6, 6],
-                        [11, 7],
-                        [11, 1],
-                        [13, 9],
-                        [12, 7],
-                        [10, 7],
-                        [8, 2],
-                        [1, 8],
-                        [7, 3],
-                        [6, 5],
-                        [2, 1],
-                        [10, 6],
-                        [4, 8],
-                        [4, 2],
-                        [9, 7],
-                        [6, 2],
-                        [3, 6],
-                        [12, 2],
-                        [10, 3],
-                        [10, 5],
-                        [9, 5],
-                        [8, 8],
-                        [8, 7],
-                        [3, 2],
-                        [13, 6],
-                        [3, 1],
-                        [5, 1],
-                        [2, 7],
-                        [8, 3],
-                        [12, 5],
-                        [11, 2],
-                        [6, 3],
-                        [1, 4],
-                        [13, 3],
-                        [4, 1],
-                        [9, 9],
-                        [7, 7],
-                        [4, 3],
-                        [12, 1],
-                        [2, 2],
-                        [7, 6],
-                        [4, 6],
-                        [7, 9],
-                        [7, 2],
-                        [3, 8],
-                        [1, 6],
-                        [11, 3],
-                        [11, 4],
-                        [5, 9],
-                        [13, 8],
-                        [1, 9],
-                        [10, 1],
-                        [9, 1],
-                        [6, 1],
-                        [10, 9],
-                        [12, 9],
-                        [11, 5],
-                        [8, 1],
-                        [13, 5],
-                        [9, 6],
-                        [13, 2],
-                        [6, 8],
-                        [2, 8],
-                        [5, 3],
-                        [3, 3],
-                        [13, 1],
-                        [11, 9],
-                        [9, 3],
-                        [2, 4],
-                        [5, 2],
-                        [8, 5],
-                        [13, 7],
-                        [12, 8],
-                        [5, 5],
-                        [7, 1],
-                        [7, 4],
-                        [2, 5],
-                        [6, 9],
-                        [4, 7],
-                        [5, 8],
-                        [1, 5],
-                        [10, 8],
-                        [8, 4],
-                        [1, 1],
-                        [3, 9],
-                        [1, 2],
-                        [7, 8],
-                        [1, 7],
-                        [6, 7],
-                        [11, 6],
-                        [4, 5],
-                        [5, 7],
-                        [2, 3],
-                        [10, 4],
-                        [5, 4],
-                        [12, 3],
-                    ],
-                ),
-                35,
-            ),
+            EXTRA_TEST_CASE,
         ];
 
         for ((row, col, cells), expected) in test_cases {