diff --git a/compose.yaml b/compose.yaml
index 5cfe9ac..9aac6d8 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -88,7 +88,7 @@ services:
     image: gitlab.prodcontest.ru:5050/team-15/project/backend:latest
     build:
       context: ./services/backend
-    entrypoint: ["/app/scripts/celery-worker-entrypoint.sh"]
+    command: celery -A config worker -l INFO
     depends_on:
       redis:
         restart: false
@@ -106,10 +106,6 @@ services:
       retries: 3
       start_period: 10s
       start_interval: 2s
-    volumes:
-      - type: bind
-        source: ./infrastructure/backend/scripts
-        target: /app/scripts
     restart: unless-stopped
 
   celery-exporter:
diff --git a/services/backend/api/v1/review/schemas.py b/services/backend/api/v1/review/schemas.py
index 1090f14..3e47f62 100644
--- a/services/backend/api/v1/review/schemas.py
+++ b/services/backend/api/v1/review/schemas.py
@@ -73,7 +73,7 @@ class SubmissionOut(ModelSchema):
             "stdout",
             "result",
             "earned_points",
-            "reviewed_at",
+            "checked_at",
         )
 
 
diff --git a/services/backend/apps/competition/migrations/0001_initial.py b/services/backend/apps/competition/migrations/0001_initial.py
index 7a7cdfe..223f6b8 100644
--- a/services/backend/apps/competition/migrations/0001_initial.py
+++ b/services/backend/apps/competition/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-02 00:16
+# Generated by Django 5.1.6 on 2025-03-02 06:13
 
 import apps.competition.models
 import datetime
@@ -23,8 +23,8 @@ class Migration(migrations.Migration):
                 ('title', models.CharField(max_length=100, verbose_name='название')),
                 ('description', models.TextField(verbose_name='описание')),
                 ('image_url', models.ImageField(blank=True, null=True, upload_to=apps.competition.models.Competition.image_url_upload_to, verbose_name='изображение соревнования')),
-                ('end_date', models.DateTimeField(blank=True, null=True, verbose_name='дедлайн участия')),
-                ('start_date', models.DateTimeField(blank=True, null=True, verbose_name='дедлайн участия')),
+                ('end_date', models.DateTimeField(blank=True, null=True, verbose_name='окончание соревнования')),
+                ('start_date', models.DateTimeField(blank=True, null=True, verbose_name='начало соревнования')),
                 ('type', models.CharField(choices=[('edu', 'Образовательный'), ('competitive', 'Соревновательный')], max_length=11, verbose_name='тип участия')),
                 ('participation_type', models.CharField(choices=[('solo', 'Индивидуальный')], max_length=11, verbose_name='тип соревнования')),
                 ('participants', models.ManyToManyField(blank=True, editable=False, related_name='participants', to='user.user')),
diff --git a/services/backend/apps/competition/migrations/0002_alter_state_state.py b/services/backend/apps/competition/migrations/0002_alter_state_state.py
deleted file mode 100644
index 9814e70..0000000
--- a/services/backend/apps/competition/migrations/0002_alter_state_state.py
+++ /dev/null
@@ -1,18 +0,0 @@
-# Generated by Django 5.1.6 on 2025-03-02 00:09
-
-from django.db import migrations, models
-
-
-class Migration(migrations.Migration):
-
-    dependencies = [
-        ('competition', '0001_initial'),
-    ]
-
-    operations = [
-        migrations.AlterField(
-            model_name='state',
-            name='state',
-            field=models.CharField(choices=[('not_started', 'Not Started'), ('started', 'Started'), ('finished', 'Finished')], default='not_started', max_length=11),
-        ),
-    ]
diff --git a/services/backend/apps/review/migrations/0001_initial.py b/services/backend/apps/review/migrations/0001_initial.py
index 7c8ad53..da0497e 100644
--- a/services/backend/apps/review/migrations/0001_initial.py
+++ b/services/backend/apps/review/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-02 05:41
+# Generated by Django 5.1.6 on 2025-03-02 06:13
 
 import uuid
 from django.db import migrations, models
diff --git a/services/backend/apps/review/migrations/0002_initial.py b/services/backend/apps/review/migrations/0002_initial.py
index 39fc31e..e2bc9d9 100644
--- a/services/backend/apps/review/migrations/0002_initial.py
+++ b/services/backend/apps/review/migrations/0002_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-02 05:41
+# Generated by Django 5.1.6 on 2025-03-02 06:13
 
 import django.db.models.deletion
 from django.db import migrations, models
diff --git a/services/backend/apps/task/migrations/0001_initial.py b/services/backend/apps/task/migrations/0001_initial.py
index c221558..cf4fbdc 100644
--- a/services/backend/apps/task/migrations/0001_initial.py
+++ b/services/backend/apps/task/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-02 05:41
+# Generated by Django 5.1.6 on 2025-03-02 06:13
 
 import apps.task.models
 import django.db.models.deletion
@@ -12,7 +12,7 @@ class Migration(migrations.Migration):
     initial = True
 
     dependencies = [
-        ('competition', '0002_alter_state_state'),
+        ('competition', '0001_initial'),
         ('user', '0001_initial'),
     ]
 
@@ -25,11 +25,10 @@ class Migration(migrations.Migration):
                 ('title', models.CharField(max_length=50, verbose_name='заголовок')),
                 ('description', tinymce.models.HTMLField(max_length=300, verbose_name='описание')),
                 ('max_attempts', models.PositiveSmallIntegerField(blank=True, null=True)),
-                ('type', models.CharField(choices=[('input', 'Ввод правильного ответа'), ('checker', 'Вывод кода'), ('review', 'Ручная')], max_length=8, verbose_name='тип проверки')),
+                ('type', models.CharField(choices=[('input', 'Ввод правильного ответа'), ('checker', 'Ввод кода'), ('review', 'Ручная')], max_length=8, verbose_name='тип проверки')),
                 ('correct_answer_file', models.FileField(blank=True, null=True, upload_to=apps.task.models.CompetitionTask.answer_file_upload_to, verbose_name='файл с правильным ответом')),
                 ('points', models.IntegerField(blank=True, null=True, verbose_name='баллы за задание')),
-                ('answer_file_path', models.TextField(blank=True, default='stdout', null=True, verbose_name='куда сохранять решения')),
-                ('criteries', models.JSONField(blank=True, null=True, verbose_name='критерии')),
+                ('answer_file_path', models.TextField(blank=True, default='stdout', help_text='Путь до файла в котором ожидается результат. Пример: stdout или ./output.txt', null=True, verbose_name='куда сделать вывод программы участнику')),
                 ('competition', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='competition.competition')),
             ],
             options={
@@ -50,6 +49,20 @@ class Migration(migrations.Migration):
                 'abstract': False,
             },
         ),
+        migrations.CreateModel(
+            name='CompetitionTaskCriteria',
+            fields=[
+                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
+                ('name', models.TextField()),
+                ('slug', models.SlugField()),
+                ('description', models.TextField()),
+                ('max_value', models.PositiveSmallIntegerField()),
+                ('task', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='criteries', to='task.competitiontask')),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
         migrations.CreateModel(
             name='CompetitionTaskSubmission',
             fields=[
@@ -59,7 +72,8 @@ class Migration(migrations.Migration):
                 ('stdout', models.FileField(blank=True, null=True, upload_to=apps.task.models.CompetitionTaskSubmission.submission_stdout_upload_to)),
                 ('result', models.JSONField(blank=True, default=None, null=True)),
                 ('earned_points', models.IntegerField(blank=True, null=True)),
-                ('reviewed_at', models.DateTimeField(blank=True, null=True)),
+                ('checked_at', models.DateTimeField(blank=True, null=True)),
+                ('plagiarism_checked', models.BooleanField(default=False)),
                 ('timestamp', models.DateTimeField(auto_now_add=True)),
                 ('task', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='task.competitiontask')),
                 ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='user.user')),
diff --git a/services/backend/apps/task/models.py b/services/backend/apps/task/models.py
index 66d4ca3..dd618e1 100644
--- a/services/backend/apps/task/models.py
+++ b/services/backend/apps/task/models.py
@@ -5,14 +5,13 @@ from tinymce.models import HTMLField
 
 from apps.competition.models import Competition
 from apps.core.models import BaseModel
-from apps.task.validators import ContestTaskCriteriesValidator
 from apps.user.models import User
 
 
 class CompetitionTask(BaseModel):
     class CompetitionTaskType(models.TextChoices):
         INPUT = "input", "Ввод правильного ответа"
-        CHECKER = "checker", "Вывод кода"
+        CHECKER = "checker", "Ввод кода"
         REVIEW = "review", "Ручная"
 
     def answer_file_upload_to(instance, filename) -> str:
@@ -44,21 +43,11 @@ class CompetitionTask(BaseModel):
     answer_file_path = models.TextField(
         null=True,
         blank=True,
-        verbose_name="куда сохранять решения",
+        verbose_name="куда сделать вывод программы участнику",
+        help_text="Путь до файла в котором ожидается результат. Пример: stdout или ./output.txt",
         default="stdout",
     )
 
-    # only when "review" type
-    # TODO make it more humanize
-    criteries = models.JSONField(
-        blank=True,
-        null=True,
-        verbose_name="критерии",
-    )
-
-    def clean(self):
-        ContestTaskCriteriesValidator()(self)
-
     def __str__(self):
         return self.title
 
@@ -67,6 +56,17 @@ class CompetitionTask(BaseModel):
         verbose_name_plural = "задания"
 
 
+class CompetitionTaskCriteria(BaseModel):
+    task = models.ForeignKey(
+        CompetitionTask, on_delete=models.CASCADE, related_name="criteries"
+    )
+
+    name = models.TextField()
+    slug = models.SlugField()
+    description = models.TextField()
+    max_value = models.PositiveSmallIntegerField()
+
+
 class CompetitionTaskAttachment(BaseModel):
     def file_upload_at(instance, filename):
         return f"/attachment/{instance.id}/file"
@@ -114,5 +114,6 @@ class CompetitionTaskSubmission(BaseModel):
     # just more readable result representation, maybe will be calcuated somehow more complex depends on criteria
     earned_points = models.IntegerField(null=True, blank=True)
 
-    reviewed_at = models.DateTimeField(null=True, blank=True)
+    checked_at = models.DateTimeField(null=True, blank=True)
+    plagiarism_checked = models.BooleanField(default=False)
     timestamp = models.DateTimeField(auto_now_add=True)
diff --git a/services/backend/apps/task/tasks.py b/services/backend/apps/task/tasks.py
index 2ac935e..a4a8eee 100644
--- a/services/backend/apps/task/tasks.py
+++ b/services/backend/apps/task/tasks.py
@@ -1,4 +1,5 @@
 import ast
+import contextlib
 import hashlib
 import os
 import sys
@@ -6,6 +7,7 @@ import tempfile
 from io import StringIO
 
 from config.celery import app
+from apps.task.models import CompetitionTaskSubmission
 
 ALLOWED_MODULES = {
     "pandas",
@@ -117,7 +119,7 @@ def secure_exec(code_str, result_path, input_files=None):
 
 @app.task(bind=True)
 def analyze_data_task(
-    self, code_str, result_path, expected_bytes, input_files=[]
+    self, code_str, result_path, expected_file_link, submission_id, input_files=[]
 ):
     try:
         validate_code(code_str)
@@ -127,6 +129,10 @@ def analyze_data_task(
         result_hash = hashlib.sha256(result_content).hexdigest()
         expected_hash = hashlib.sha256(expected_bytes).hexdigest()
 
+        with contextlib.suppress(CompetitionTaskSubmission.DoesNotExist):
+            submission = CompetitionTaskSubmission.objects.get(id=submission_id)
+            submission.result = {"correct": True}
+
         return {
             "success": True,
             "match": result_hash == expected_hash,
diff --git a/services/backend/apps/task/tests/test_tasks.py b/services/backend/apps/task/tests/test_tasks.py
new file mode 100644
index 0000000..4209d70
--- /dev/null
+++ b/services/backend/apps/task/tests/test_tasks.py
@@ -0,0 +1,32 @@
+import unittest
+
+from apps.task.tasks import analyze_data_task
+
+
+class TestAnalyzeDataTask(unittest.TestCase):
+    def test_task_execution_basic(self):
+        code_str = 'print("Hello, World!")'
+        result_path = "stdout"
+        expected_bytes = b"Hello, World!\n"
+        result = analyze_data_task(code_str, result_path, expected_bytes)
+        self.assertTrue(result["success"])
+        self.assertTrue(result["match"])
+
+    def test_task_execution_with_files(self):
+        code_str = """
+with open("file.txt") as f:
+    print(f.read())
+        """
+        result_path = "stdout"
+        expected_bytes = b"some_content\n"
+        result = analyze_data_task(
+            code_str,
+            result_path,
+            expected_bytes,
+            input_files=[{"bind_at": "file.txt", "content": b"some_content"}],
+        )
+        print(result)
+        self.assertTrue(result["success"])
+        self.assertTrue(result["match"])
+    
+    
diff --git a/services/backend/apps/task/validators.py b/services/backend/apps/task/validators.py
deleted file mode 100644
index ec8024f..0000000
--- a/services/backend/apps/task/validators.py
+++ /dev/null
@@ -1,24 +0,0 @@
-from django.core.exceptions import ValidationError
-from pydantic import BaseModel
-from pydantic import ValidationError as PydanticValidationError
-
-
-class Criteria(BaseModel):
-    name: str
-    slug: str
-    max_value: int
-    min_value: int
-
-
-class ContestTaskCriteriesValidator:
-    def __call__(self, instance):
-        if instance.criteries and not isinstance(instance.criteries, list):
-            err = "criteries must be a valid dictionary"
-            raise ValidationError(err)
-
-        try:
-            for criteria in instance.criteries if instance.criteries else []:
-                Criteria(**criteria)
-        except PydanticValidationError:
-            err = "invalid criteries data"
-            raise ValidationError(err)
diff --git a/services/backend/apps/team/migrations/0001_initial.py b/services/backend/apps/team/migrations/0001_initial.py
index 81d686b..27317a3 100644
--- a/services/backend/apps/team/migrations/0001_initial.py
+++ b/services/backend/apps/team/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.1.6 on 2025-03-02 00:16
+# Generated by Django 5.1.6 on 2025-03-02 06:13
 
 import django.db.models.deletion
 import uuid