diff --git a/docker-compose.yml b/docker-compose.yml
index a73e488..e4c728e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,6 +19,8 @@ services:
     ports:
       - 8000:80 
     environment:
+      - SOLUTION_MAX_TRIALS=5
+      - MANAGEMENT_URL=http://management:8000
       - AGENTS_PROCESS=http://agent_process_1:3001,http://agent_process_2:3001
       - AGENTS_SOLVE=http://agent_solve_1:3001
       - AGENTS_GATEKEEPER=http://agent_gatekeeper_1:3001
diff --git a/ums/__main__.py b/ums/__main__.py
index ad69ded..ec6f2c7 100644
--- a/ums/__main__.py
+++ b/ums/__main__.py
@@ -35,7 +35,6 @@ if __name__ == "__main__":
 
 	mr = ManagementRequest("localhost")
 
-	print( mr.send_message(ex) )
-	
-	print( mr.get_status(20))
+	print(mr.send_message(ex))
+	print(mr.get_status(20))
 	
\ No newline at end of file
diff --git a/ums/management/db.py b/ums/management/db.py
index 51464c2..944d096 100644
--- a/ums/management/db.py
+++ b/ums/management/db.py
@@ -15,7 +15,7 @@ from datetime import datetime
 from threading import Lock
 from typing import Generator
 
-from pydantic import validate_call
+from pydantic import validate_call, ValidationError
 
 from ums.utils import PERSIST_PATH, AgentMessage, MessageDbRow
 
@@ -45,19 +45,20 @@ class DB():
 			 	recipient TEXT,
 				time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
 				json BLOB,
-				processed BOOL DEFAULT FALSE
+				processed BOOL DEFAULT FALSE,
+				solution BOOL DEFAULT NULL
 			)""")
 		self.db_lock.release()
 
 	@validate_call
-	def add_message(self, sender:str, recipient:str, message:AgentMessage, processed:bool=False) -> int:
+	def add_message(self, sender:str, recipient:str, message:AgentMessage, processed:bool=False ) -> int:
 		self.db_lock.acquire()
 		with self.db:
 			self.db.execute(
 				"""INSERT INTO Messages (
-						id, sender, recipient, json, processed 
+						id, sender, recipient, json, processed
 					) VALUES (
-						:id, :sender, :recipient, :json, :processed 
+						:id, :sender, :recipient, :json, :processed
 				)""", {
 					"id" : message.id,
 					"sender" : sender,
@@ -82,13 +83,25 @@ class DB():
 			finally:
 				self.db_lock.release()
 
+	@validate_call
+	def set_solution(self, count:int, solution:bool) -> bool:
+		self.db_lock.acquire()
+		with self.db:
+			try:
+				self.db.execute("UPDATE Messages SET solution = ? WHERE count = ?", (solution, count))
+				return True
+			except:
+				return False
+			finally:
+				self.db_lock.release()
+
 	def __iter__(self) -> Generator[MessageDbRow, None, None]:
 		yield from self.iterate()
 
 	@validate_call
 	def iterate(self,
 		id:str|None=None, sender:str|None=None, recipient:str|None=None,
-		processed:bool|None=None,
+		processed:bool|None=None, solution:bool|None=None,
 		time_after:int|None=None, time_before:int|None=None,
 		limit:int=20, offset:int=0, _count_only:bool=False
 	) -> Generator[MessageDbRow|int, None, None]:
@@ -99,7 +112,11 @@ class DB():
 			"off": offset
 		}
 
-		for v,n in ((id,'id'), (sender,'sender'), (recipient,'recipient'), (processed,'processed')):
+		for v,n in (
+				(id,'id'),
+				(sender,'sender'), (recipient,'recipient'),
+				(processed,'processed'), (solution,'solution')
+			):
 			if not v is None:
 				where.append('{} = :{}'.format(n,n))
 				params[n] = v
@@ -130,7 +147,7 @@ class DB():
 					"SELECT * FROM Messages {} ORDER BY time DESC LIMIT :lim OFFSET :off".format(where_clause),
 					params
 				):
-					yield self._create_row_object(row)
+					yield self._create_row_object(row, allow_lazy=True)
 
 	def __len__(self) -> int:
 		return self.len()
@@ -142,14 +159,29 @@ class DB():
 		kwargs['_count_only'] = True
 		return next(self.iterate(**kwargs))
 
-	def _create_row_object(self, row:sqlite3.Row) -> MessageDbRow:
+	def _create_row_object(self, row:sqlite3.Row, allow_lazy:bool=True) -> MessageDbRow:
+		try:
+			message = AgentMessage.model_validate_json(
+					row['json'],
+					context={"require_file_exists": not allow_lazy}
+				)
+		except ValidationError as e:
+			if allow_lazy:
+				message = AgentMessage(
+					id="error",
+					riddle={"context":str(e),"question":"Failed to load from Database!"}
+				) 
+			else:
+				raise e
+		
 		return MessageDbRow(
 			count=row['count'],
 			sender=row['sender'],
 			recipient=row['recipient'],
 			time=int(datetime.strptime(row['time'], self._DB_TIME_FORMAT).timestamp()),
-			message=AgentMessage.model_validate_json(row['json'], context={"require_file_exists":False}),
-			processed=row['processed']
+			message=message,
+			processed=row['processed'],
+			solution=row['solution']
 		)
 
 	def by_count(self, count:int) -> MessageDbRow|None:
diff --git a/ums/management/interface.py b/ums/management/interface.py
index 0c915ba..87c3a43 100644
--- a/ums/management/interface.py
+++ b/ums/management/interface.py
@@ -44,7 +44,7 @@ class Interface():
 		@self.router.get("/table", response_class=HTMLResponse, summary="Table of messages")
 		def table(request: Request,
 			id:str|None=None, sender:str|None=None, recipient:str|None=None,
-			processed:bool|None=None,
+			processed:bool|None=None, solution:bool|None=None,
 			time_after:int|str|None=None, time_before:int|str|None=None,
 			limit:int=10, offset:int=0, _count_only:bool=False
 		):
@@ -58,7 +58,7 @@ class Interface():
 				if not re.match(r'^\d+$', t) else int(t)
 			for v,n,f in (
 				(id,'id',str), (sender,'sender',str), (recipient,'recipient',str),
-				(processed,'processed', bool),
+				(processed,'processed', bool), (solution,'solution', bool),
 				(time_after, 'time_after', convert_time), (time_before, 'time_before', convert_time) 
 			):
 				if not v is None:
@@ -83,7 +83,7 @@ class Interface():
 		@self.router.get("/table/total", summary="Total number of messages in table")
 		def table_total(request: Request,
 			id:str|None=None, sender:str|None=None, recipient:str|None=None,
-			processed:bool|None=None,
+			processed:bool|None=None, solution:bool|None=None,
 			time_after:int|str|None=None, time_before:int|str|None=None,
 			limit:int=10, offset:int=0
 		) -> int:
diff --git a/ums/management/process.py b/ums/management/process.py
index 3cb1f29..7921869 100644
--- a/ums/management/process.py
+++ b/ums/management/process.py
@@ -8,16 +8,48 @@
 # source code released under the terms of GNU Public License Version 3
 # https://www.gnu.org/licenses/gpl-3.0.txt
 
+import os, re
+from typing import List
+
+import requests
 from fastapi import BackgroundTasks
 
 from ums.management.db import DB
-
 from ums.utils import AgentMessage, AgentResponse
 
 class MessageProcessor():
 
+	SOLUTION_MAX_TRIALS = int(os.environ.get('SOLUTION_MAX_TRIALS', 5))
+
+	MANAGEMENT_URL = os.environ.get('MANAGEMENT_URL', 'http://127.0.0.1:80').strip().strip('/')
+	
+	AGENTS_PROCESS = tuple(map(
+		lambda s:s.strip().strip('/'),
+		os.environ.get('AGENTS_PROCESS', '').split(',')
+	))
+	AGENTS_SOLVE = tuple(map(
+		lambda s:s.strip().strip('/'),
+		os.environ.get('AGENTS_SOLVE', '').split(',')
+	))
+	AGENTS_GATEKEEPER = tuple(map(
+		lambda s:s.strip().strip('/'),
+		os.environ.get('AGENTS_GATEKEEPER', '').split(',')
+	))
+
 	def __init__(self, db:DB):
 		self.db = db
+		self.management_name = self._get_name(self.MANAGEMENT_URL)
+
+		if len(self.AGENTS_PROCESS) == 0:
+			print("Not Process Agent (AGENTS_PROCESS) found, this may be a problem!")
+		if len(self.AGENTS_SOLVE) == 0:
+			print("Not Solve Agent (AGENTS_SOLVE) found, this may be a problem!")
+		if len(self.AGENTS_GATEKEEPER) == 0:
+			print("Not Gatekeeper Agent (AGENTS_GATEKEEPER) found, this may be a problem!")
+
+	def _get_name(self, url:str) -> str:
+		m = re.match(r'^https?://([^:]*)(?::(\d+))?$', url)
+		return "unknown" if m == None else m.group(1)
 
 	def new_message(self,
 		sender:str, receiver:str, message:AgentMessage,
@@ -39,6 +71,96 @@ class MessageProcessor():
 				error_msg=str(e)
 			)
 
-	def _process_message(self, count:int):
-		# TODO !!!
-		self.db.set_processed(count=count, processed=True)
\ No newline at end of file
+	def _process_message(self, count:int, ignore_processed:bool=False):
+		db_message = self.db.by_count(count)
+
+		if db_message.processed and not ignore_processed:
+			# do not process processed messages again
+			return
+		
+		# check which step/ state the message requires the management to do
+		if db_message.message.status.extract.required and not db_message.message.status.extract.finished:
+			self._do_extract(db_message.message)
+		elif db_message.message.status.solve.required and not db_message.message.status.solve.finished:
+			self._do_solve(db_message.message)
+		elif db_message.message.status.validate.required and not db_message.message.status.validate.finished:
+			self._do_validate(db_message.message)
+		else: # all steps "done"
+			if db_message.message.status.solved:
+				# yay, message is solved
+				self.db.set_solution(count=count, solution=True);
+			else:
+				# not solved, but all steps done
+				self.db.set_solution(count=count, solution=False);
+		
+				# try again
+				self._do_again(db_message.message)
+
+		# now message processed!
+		self.db.set_processed(count=count, processed=True)
+
+	def _do_extract(self, message:AgentMessage):
+		# TODO
+		pass
+
+	def _do_solve(self, message:AgentMessage):
+		# TODO
+		pass
+
+	def _do_validate(self, message:AgentMessage):
+		# TODO
+		pass
+
+	def _do_again(self, message:AgentMessage):
+		if message.status.trial < self.SOLUTION_MAX_TRIALS:
+			# try again, recycle message
+
+			# require steps again
+			if message.status.extract.required:
+				message.status.extract.finished = False 
+			if message.status.solve.required:
+				message.status.solve.finished = False 
+			if message.status.validate.required:
+				message.status.validate.finished = False
+
+			# increment trial
+			message.status.trial += 1
+
+			# append current solution als old one
+			if not message.solution is None:
+				message.riddle.solutions_before.append(
+					message.solution
+				)
+				# reset current solution
+				message.solution = None
+
+			# add the riddle as new to management
+			self._send_message(self.MANAGEMENT_URL, message)
+
+	def _send_messages(self, recipients:List[str], message:AgentMessage) -> bool:
+		ok  = True
+		for r in recipients:
+			ok = ok and self._send_message(r, message)
+		return ok
+
+	def _send_message(self, recipient:str, message:AgentMessage) -> bool:
+		db_count = self.db.add_message(
+			sender=self.management_name,
+			recipient=self._get_name(recipient),
+			message=message,
+			processed=False
+		)
+
+		r = requests.post(
+			"{}/message".format(recipient),
+			data=message.model_dump_json(),
+			headers={"accept" : "application/json", "content-type" : "application/json"}
+		)
+
+		if r.status_code == 200:
+			self.db.set_processed(db_count, processed=True)
+			return True
+		else:
+			print("Error sending message to:", recipient, (r.text, r.headers))
+			return False
+			
\ No newline at end of file
diff --git a/ums/utils/types.py b/ums/utils/types.py
index 65a55f2..ce784fa 100644
--- a/ums/utils/types.py
+++ b/ums/utils/types.py
@@ -370,4 +370,10 @@ class MessageDbRow(BaseModel):
 	processed : bool
 	"""
 		Did the management process the message, i.e., did the tasks necessary for this message (mostly only relevant for received messages).
+	"""
+
+	solution : bool|None = None
+	"""
+		Does this message contain a valid solution?
+		True if contains valid solution, False if solution not valid, Null/None if not applicable
 	"""
\ No newline at end of file