diff --git a/rules_ut.py b/rules_ut.py
new file mode 100644
index 0000000..1ca3293
--- /dev/null
+++ b/rules_ut.py
@@ -0,0 +1,25 @@
+import unittest
+from parameterized import parameterized
+
+from src.rules import Rules
+from src.board import Board
+
+class TestRules(unittest.TestCase):
+	@parameterized.expand([
+		(6, 7, True),
+		(10, 10, False),
+		('6', '7', False),
+		(7, '1', False),
+		('1', 6, False),
+	])
+	def test_check_board_size(self, row, col, no_exception):
+		rules = Rules()
+		board = Board(row, col)
+
+		if no_exception:
+			self.assertTrue(rules.check_board_size(board))
+		else:
+			self.assertFalse(rules.check_board_size(board))
+
+if __name__ == "__main__":
+	unittest.main()
\ No newline at end of file
diff --git a/src/rules.py b/src/rules.py
index 05e20d7..0dd0475 100644
--- a/src/rules.py
+++ b/src/rules.py
@@ -1,23 +1,25 @@
+from src.board import Board
+
 class Rules:
 	def __init__(self):
-		self.name = None
-		self.nb_row = None
-		self.nb_col = None
 
-	def check_board_size(self, board: Board) -> Bool:
-	""" Checks if the board size is correct.
-	Entries:
-		self: the Rules class itself
-		board -> Board: a board
-	Output:
-		correct -> Bool: if True, the board size is correct
-	"""
-		correct = False
+		self.nb_row = 6
+		self.nb_col = 7
 
-		try:
-			if self.nb_col == board.nb_col and self.nb_row == board.nb_row :
-				correct = True
-		except Exception:
-			print("Exception: check_board_size: col and row parameters might are compared to another type")
+	def check_board_size(self, board):
+		""" Checks if the board size is correct.
+		Entries:
+			self: the Rules class itself
+			board -> Board: a board
+		Output:
+			correct -> Bool: if True, the board size is correct
+		"""
+		correct = False
 
+		
+		if self.nb_col == board.nbcol and self.nb_row == board.nbrow :
+			correct = True
+		else:
+			correct = False
+		
 		return correct
diff --git a/test/rules_ut.py b/test/rules_ut.py
deleted file mode 100644
index 29578f6..0000000
--- a/test/rules_ut.py
+++ /dev/null
@@ -1,25 +0,0 @@
-import unittest
-from parametrized import parametrized
-
-from src.rules import Rules
-
-class TestRules(unittest.TestCase):
-	@parameterized([
-		('Joe', 7, 6, True),
-		('Joe', 10, 10, False),
-		('Joe', '7', '6', False),
-		('Joe', 7, '1', False),
-		('Joe', '1', 6, False),
-	])
-	def test_check_board_size(self, name, col, row, no_exception=False):
-		Rules rules
-		Board board(name, col, row)
-
-		if no_exception:
-			try:
-				rules.check_board_sizes(board)
-			except Exception:
-				self.assertEqual(no_exception, False)
-
-if __name__ == "__main__":
-	unittest.main()
\ No newline at end of file