diff --git a/lib/pages/practice/PracticeGenerator.dart b/lib/pages/practice/PracticeGenerator.dart
deleted file mode 100644
index 75ccd51..0000000
--- a/lib/pages/practice/PracticeGenerator.dart
+++ /dev/null
@@ -1,5 +0,0 @@
-abstract class PracticeGenerator {
-  bool check(int other);
-  void next();
-  String toString();
-}
\ No newline at end of file