feat(content): hidden test cases

backend/data/questions/check-if-word-can-be-placed-in-crossword.yaml

@@ -9,6 +9,30 @@ categories:
 patterns:
   - matrix-traversal
 
+function_signature: "def place_word_in_crossword(board: list[list[str]], word: str) -> bool:"
+
+test_cases:
+  visible:
+    - input: { board: [["#", " ", "#"], [" ", " ", "#"], ["#", "c", " "]], word: "abc" }
+      expected: true
+    - input: { board: [[" ", "#", "a"], [" ", "#", "c"], [" ", "#", "a"]], word: "ac" }
+      expected: false
+    - input: { board: [["#", " ", "#"], [" ", " ", "#"], ["#", " ", "c"]], word: "ca" }
+      expected: true
+  hidden:
+    - input: { board: [[" "]], word: "a" }
+      expected: true
+    - input: { board: [["a"]], word: "a" }
+      expected: true
+    - input: { board: [["a"]], word: "b" }
+      expected: false
+    - input: { board: [[" ", " ", " "]], word: "abc" }
+      expected: true
+    - input: { board: [[" ", "#", " "]], word: "ab" }
+      expected: false
+    - input: { board: [["a", "b", "c"]], word: "abc" }
+      expected: true
+
 description: |
   You are given an `m x n` matrix `board`, representing the **current** state of a crossword puzzle. The crossword contains lowercase English letters (from solved words), `' '` to represent any **empty** cells, and `'#'` to represent any **blocked** cells.