diff --git a/Project_tests/converter.py b/Project_tests/converter.py
index 73d592b19f276cf8a5c9e76913ade6881061fb81..3156cb9d7494acb0533860bfb29260113db1ee22 100644
--- a/Project_tests/converter.py
+++ b/Project_tests/converter.py
@@ -29,7 +29,8 @@ import unittest
 from abc import ABC, abstractmethod
 #from other.AliciMuhamed.Test_Converter_Römische_Zahlen import ConverterMomo as MomoCalc
 #from other.BerishaAlma.test2converter import RomanNumber as AlmaCalc
-from other.GotsisWasilios.TDD_Converter import WasiliRomanNumber as WasiliCalc
+#from other.GotsisWasilios.TDD_Converter import WasiliRomanNumber as WasiliCalc
+from other.PikkemaatLasse.romannumerals import RomanNumerals as LasseCalc
 
 class IConverter(ABC):
     @abstractmethod
@@ -72,8 +73,8 @@ class DanisConverter(IConverter):
 
 class TestConverter(unittest.TestCase):
     def setUp(self):
-        self.c = WasiliCalc()
-        self.c.convert = self.c.convert_int_to_str
+        self.c = LasseCalc()
+        self.c.convert = self.c.to_roman
        
 
     def test_convertOne(self):
diff --git a/Project_tests/other/PikkemaatLasse/__pycache__/romannumerals.cpython-312.pyc b/Project_tests/other/PikkemaatLasse/__pycache__/romannumerals.cpython-312.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..53d750b163127a48512ff3cb2717a6f4cd76370b
Binary files /dev/null and b/Project_tests/other/PikkemaatLasse/__pycache__/romannumerals.cpython-312.pyc differ
diff --git a/Project_tests/other/PikkemaatLasse/calculator.py b/Project_tests/other/PikkemaatLasse/calculator.py
deleted file mode 100644
index e799761a891c6add0f8c76442f7d6d523992d0e0..0000000000000000000000000000000000000000
--- a/Project_tests/other/PikkemaatLasse/calculator.py
+++ /dev/null
@@ -1,29 +0,0 @@
-#Test1: Addition 2 positiver Zaheln (2+5) erwartetes Ergebnis 8
-#Test2: Addition negativer und positiver Zahl (-1+1) erwartetes Ergebnis 0
-#Test3: Addition (0+0), erwartetes Ergebnis 0
-#Test4: Addition von 2 Dezimalzahlen (2,5+3,5), erwartetes Ergebnis 6
-
-from abc import ABC, abstractmethod
-class ICalculator(ABC):
-    @abstractmethod
-    def add(self, a: float, b: float) -> float:
-        pass
-
-class Calculator(ICalculator):
-    def add(self, a: float, b: float) -> float:
-        return a + b
-
-class TestCalculator:
-    def __init__(self, calculator: ICalculator):
-        self.calculator = calculator
-    def test_add(self):
-        assert self.calculator.add(2,3) == 5, "Fehler falls nicht 5"
-        assert self.calculator.add(-1,1) == 0, "Fegler falls nich 0"
-        assert self.calculator.add(0,0) == 0, "Fehler falls nicht 0"
-        assert self.calculator.add(2.5,3.5) == 6, "Fehler falls nicht 5"
-        print("Test erfolgreich")
-
-if __name__ == "__main__":
-    calc = Calculator()
-    tester = TestCalculator(calc)
-    tester.test_add()
diff --git a/Project_tests/other/PikkemaatLasse/counter.py b/Project_tests/other/PikkemaatLasse/counter.py
deleted file mode 100644
index 00cf9c02e9829bf00319ee1547bfdd28a6018193..0000000000000000000000000000000000000000
--- a/Project_tests/other/PikkemaatLasse/counter.py
+++ /dev/null
@@ -1,48 +0,0 @@
-#Bei Eingabe des Strings "Decker" liefert die Funktion 3
-#Bei Eingabe eines leeren Stings soll 0 augegeben werden
-#Bei Eingabe des Strings "Hallo" ohne E und D soll 0 ausgegeben werden
-#Bei Eingabe von dem String "Der Esel" soll Groß-Kleinschreibung (Caseinsensitive) gezählt werden. das Ergebnis ist 4
-#Bei Eingabe des Buchstaben D oder E soll 1 ausgegeben werden
-
-from abc import ABC,abstractmethod
-import unittest
-
-class ICounter (ABC):
-    @abstractmethod
-    def count_ED(self,s):
-        pass
-
-class Counter (ICounter):
-    def count_ED(self, s):
-        s=s.upper()
-        return s.count("D")+s.count("E")
-        
-class TestCounter (unittest.TestCase):
-    def setUp(self):
-        self.c=Counter()
-    def test_count_ED_regular (self):
-        res=self.c.count_ED ("Decker")
-        self.assertEqual(res,3)
-    def test_count_ED_empty (self):
-        res=self.c.count_ED ("")
-        self.assertEqual(res,0)
-    def test_count_ED_wo (self):
-        '''Testet einen String ohne E und D'''
-        res=self.c.count_ED ("Hallo")
-        self.assertEqual(res,0)
-    def test_count_ED_case_insensitive (self):
-        '''Testet verschiedene Groß- und Kleinschreibungen'''
-        res=self.c.count_ED ("Der Esel")
-        self.assertEqual(res,4) 
-    def test_count_ED_single_letetr (self):
-        '''Testet Eingaben mit nur einem Buchstaben'''
-        res=self.c.count_ED ('D')
-        self.assertEqual(res,1) 
-        res=self.c.count_ED ('E')
-        self.assertEqual (res,1)
-        res=self.c.count_ED ('d')
-        self.assertEqual(res,1) 
-        res=self.c.count_ED ('e')
-        self.assertEqual (res,1)
-if __name__=="__main__":
-    unittest.main()
\ No newline at end of file
diff --git a/Project_tests/other/PikkemaatLasse/interfaces.py b/Project_tests/other/PikkemaatLasse/interfaces.py
deleted file mode 100644
index fc645736ebe7edf2091db66c3738825f50fd923f..0000000000000000000000000000000000000000
--- a/Project_tests/other/PikkemaatLasse/interfaces.py
+++ /dev/null
@@ -1,6 +0,0 @@
-from abc import ABC, abstractmethod
-
-class IRomanNumerals(ABC):
-    @abstractmethod
-    def to_roman(self, num):
-        pass
\ No newline at end of file
diff --git a/Project_tests/other/PikkemaatLasse/romannumerals.py b/Project_tests/other/PikkemaatLasse/romannumerals.py
new file mode 100644
index 0000000000000000000000000000000000000000..a1cc589d210b30bd0f7cc7ceec79daea98bbee45
--- /dev/null
+++ b/Project_tests/other/PikkemaatLasse/romannumerals.py
@@ -0,0 +1,93 @@
+from abc import ABC, abstractmethod
+
+class IRomanNumerals(ABC):
+    @abstractmethod
+    def to_roman(self, num):
+        pass
+
+class RomanNumerals(IRomanNumerals):
+    def to_roman(self, num):
+        if not isinstance(num, int):
+            raise ValueError("Eingabe muss eine ganze Zahl sein")
+        if num <= 0 or num >= 4000:
+            raise ValueError("Zahl muss zwischen 1 und 3999 liegen")
+
+        val = [
+            (1000, "M"), (900, "CM"), (500, "D"), (400, "CD"),
+            (100, "C"), (90, "XC"), (50, "L"), (40, "XL"),
+            (10, "X"), (9, "IX"), (5, "V"), (4, "IV"),
+            (1, "I")
+        ]
+
+        result = ""
+        for (value, numeral) in val:
+            while num >= value:
+                result += numeral
+                num -= value
+        return result
+
+
+import unittest
+
+
+class TestRomanNumerals(unittest.TestCase):
+    def setUp(self):
+        self.converter = RomanNumerals()
+
+    def test_to_roman_basic(self):
+        self.assertEqual(self.converter.to_roman(1), "I")
+        self.assertEqual(self.converter.to_roman(5), "V")
+        self.assertEqual(self.converter.to_roman(10), "X")
+        self.assertEqual(self.converter.to_roman(50), "L")
+        self.assertEqual(self.converter.to_roman(100), "C")
+        self.assertEqual(self.converter.to_roman(500), "D")
+        self.assertEqual(self.converter.to_roman(1000), "M")
+
+    def test_to_roman_subtraction(self):
+        self.assertEqual(self.converter.to_roman(4), "IV")
+        self.assertEqual(self.converter.to_roman(9), "IX")
+        self.assertEqual(self.converter.to_roman(40), "XL")
+        self.assertEqual(self.converter.to_roman(90), "XC")
+        self.assertEqual(self.converter.to_roman(400), "CD")
+        self.assertEqual(self.converter.to_roman(900), "CM")
+
+    def test_to_roman_addition(self):
+        self.assertEqual(self.converter.to_roman(2), "II")
+        self.assertEqual(self.converter.to_roman(3), "III")
+        self.assertEqual(self.converter.to_roman(6), "VI")
+        self.assertEqual(self.converter.to_roman(8), "VIII")
+        self.assertEqual(self.converter.to_roman(30), "XXX")
+        self.assertEqual(self.converter.to_roman(80), "LXXX")
+
+    def test_to_roman_mixed(self):
+        self.assertEqual(self.converter.to_roman(14), "XIV")
+        self.assertEqual(self.converter.to_roman(19), "XIX")
+        self.assertEqual(self.converter.to_roman(29), "XXIX")
+        self.assertEqual(self.converter.to_roman(44), "XLIV")
+        self.assertEqual(self.converter.to_roman(99), "XCIX")
+        self.assertEqual(self.converter.to_roman(444), "CDXLIV")
+        self.assertEqual(self.converter.to_roman(999), "CMXCIX")
+
+    def test_to_roman_large_numbers(self):
+        self.assertEqual(self.converter.to_roman(1001), "MI")
+        self.assertEqual(self.converter.to_roman(1987), "MCMLXXXVII")
+        self.assertEqual(self.converter.to_roman(2023), "MMXXIII")
+        self.assertEqual(self.converter.to_roman(3999), "MMMCMXCIX")
+
+    def test_to_roman_invalid(self):
+        with self.assertRaises(ValueError):
+            self.converter.to_roman(0)
+        with self.assertRaises(ValueError):
+            self.converter.to_roman(-1)
+        with self.assertRaises(ValueError):
+            self.converter.to_roman(4000)
+        with self.assertRaises(ValueError):
+            self.converter.to_roman("ABC")
+        with self.assertRaises(ValueError):
+            self.converter.to_roman(None)
+        with self.assertRaises(ValueError):
+            self.converter.to_roman(3.14)
+
+
+if __name__ == "__main__":
+    unittest.main()
\ No newline at end of file
diff --git a/Project_tests/report.md b/Project_tests/report.md
index 99fe936afe1c5d9a0fe8b004fd059dbdc037c393..6f81ce1724b467df0c5cd1d5de12e90cb4da664d 100644
--- a/Project_tests/report.md
+++ b/Project_tests/report.md
@@ -3,7 +3,7 @@
 | AliciMuhamed   | yes (4)         | test_convertFloat test_convertNegative test_convertZero                              |
 | BerishaAlma    | no              | all except one (test_convertThree)                                                   |
 | GotsisWasilios | no              | 23/26 failed (test_convertTwenty, test_convertSixty, test_convertSeventy successful) |
-|                |                 |                                                                                      |
+| PikkemaatLasse | yes (8)         | none                                                                                 |
 |                |                 |                                                                                      |
 |                |                 |                                                                                      |
 |                |                 |                                                                                      |
\ No newline at end of file