diff --git a/src/core.py b/src/core.py
--- a/src/core.py
+++ b/src/core.py
@@ -1,49 +1,61 @@
 import multiprocessing
+import logging as log
 import PIL
-from corners import Corners
 from gui import gui
+from image_analyzer import ImageAnalyzer
+from go import Go
 
 
 class Core:
-	corners=Corners()
-	tresW=60.0
-	tresB=30.0
+	def __init__(self):
+		self.grid=None
+		self.go=Go()
+		self.detector=ImageAnalyzer()
+		self.tresW=60.0
+		self.tresB=30.0
 
-	@staticmethod
-	def setCorners(corners):
-		Core.corners=corners
+		self._msgQueue=multiprocessing.Queue()
+		self._guiQueue=multiprocessing.Queue()
+		self._incomingEvent=multiprocessing.Event()
+		self._guiEvent=multiprocessing.Event()
 
-	@staticmethod
-	def setTresholds(tresB=None,tresW=None):
-		if tresB is not None: Core.tresB=tresB
-		if tresW is not None: Core.tresW=tresW
+		self._frame=PIL.Image.open("../images/7.jpg")
 
+		self._guiProc=multiprocessing.Process(name="gui", target=gui, args=(self._guiQueue,self._guiEvent,self._msgQueue,self._incomingEvent))
+		self._guiProc.start()
+		self._guiQueue.put(("setCurrentFrame",(self._frame,),dict()))
+		self._guiEvent.set()
 
-msgQueue=multiprocessing.Queue()
-guiQueue=multiprocessing.Queue()
-incomingEvent=multiprocessing.Event()
-guiEvent=multiprocessing.Event()
+	def setCorners(self,corners):
+		self.detector.setGridCorners(corners)
+		self.detector.analyze(self._frame)
+		for r in self.detector.board: log.info(r)
 
-frame=PIL.Image.open("../images/7.jpg")
+	def setTresholds(self,tresB=None,tresW=None):
+		if tresB is not None: self.tresB=tresB
+		if tresW is not None: self.tresW=tresW
 
-guiProc=multiprocessing.Process(name="gui",target=gui,args=(guiQueue,guiEvent,msgQueue,incomingEvent))
-guiProc.start()
-guiQueue.put(("setCurrentFrame",(frame,None),dict()))
-guiEvent.set()
+	def listen(self):
+		while True:
+			self._incomingEvent.wait()
+			msg=self._msgQueue.get()
+			if self._msgQueue.empty():
+				self._incomingEvent.clear()
+			log.info(msg)
+			self._handleEvent(msg)
 
-while True:
-	incomingEvent.wait()
-	msg=msgQueue.get()
-	if msgQueue.empty():
-		incomingEvent.clear()
-	print(msg)
+	def _handleEvent(self,e):
+		actions={"setCorners":self.setCorners, "setTresholds":self.setTresholds}
+		(actionName,args,kwargs)=e
 
+		return actions[actionName](*args,**kwargs)
 
-# !! always pass object copies, don't share instances
+core=Core()
+core.listen()
+
 """
 core
 ====
-corners
 grid
 go
 imageAnalyzer
@@ -51,6 +63,8 @@ imageAnalyzer
 
 gui
 ===
+corners
+
 a) keeps references to important objects and uses them
 b) gets and sets all relevant data through method calls with core
 
@@ -61,4 +75,7 @@ GUI
 
 BoardView
 -> redrawState(go)
+
+
+core-gui: just pass messages with relevant data (!! always pass object copies, don't share instances)
 """
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